Mathematics · Discrete Mathematics
GCD–LCM Product Theorem Calculator
Calculate absolute integer product from greatest common divisor and least common multiple.
Inputs and results stay in this browser. Change one value at a time to explore the relationship.
Calculation steps
- Use c=ab with greatest common divisor=6 and least common multiple=60.
- absolute integer product=360.
Understand GCD–LCM Product Theorem
One idea, three depths
Choose how deeply to explain GCD–LCM Product Theorem
GCD–LCM Product Theorem: Calculate absolute integer product from greatest common divisor and least common multiple.
Age 5Explain it to a 5-year-oldStart with a picture
Imagine using GCD–LCM Product Theorem to answer this question: calculate absolute integer product from greatest common divisor and least common multiple? Enter greatest common divisor and least common multiple; the calculator shows absolute integer product. For example: greatest common divisor=6 and least common multiple=60 produce absolute integer product=360. The answer tells you absolute integer product.
Age 15Explain it to a 15-year-oldConnect it to the formula
For two nonzero integers, the product of their greatest common divisor and least common multiple equals the absolute product of the integers. This page evaluates the relationship directly. The rule is c=ab. Its input values are greatest common divisor, least common multiple, and the main result is absolute integer product. For example: greatest common divisor=6 and least common multiple=60 produce absolute integer product=360.
CollegeExplain it at college levelState the model precisely
This calculator evaluates the stated gcd–lcm product theorem relation over the valid real-number domain stated below. The implemented relation is c=ab, evaluated from greatest common divisor, least common multiple to produce absolute integer product. For two nonzero integers, the product of their greatest common divisor and least common multiple equals the absolute product of the integers. This page evaluates the relationship directly. Use the positive LCM convention and the absolute integer product.
Inputs and valid domain
- greatest common divisor must be a finite real number.
- least common multiple must be a finite real number.
Important boundary: Use the positive LCM convention and the absolute integer product.
The formula
c=ab
How the calculator works through it
It substitutes greatest common divisor, least common multiple into the formula and exposes every numerical step above. The main output is absolute integer product.
Read the result correctly
The absolute integer product is the direct answer to “calculate absolute integer product from greatest common divisor and least common multiple.” Read it with the units shown beside the inputs; a sign, angle, percentage or rate changes what the number means.
A worked check
greatest common divisor=6 and least common multiple=60 produce absolute integer product=360.
Where this model stops being reliable
Use the positive LCM convention and the absolute integer product.
Learn it by changing one value
Begin with the worked example, then change one value while keeping the others fixed. Compare the new result and calculation steps to identify which part of the formula changed.
Dictionary terms behind this calculator
Before studying the codeWhat you should know firstUse the calculator immediately, or check the foundations before reading the implementation.
These foundations help you understand why GCD–LCM Product Theorem works. They never block the calculator, and “optional” means useful context rather than a hidden requirement.
Hard requirements
- Reading formulas and substituting values
GCD–LCM Product Theorem uses c=ab. You need to recognise what each side represents before substituting the stated inputs or rearranging the relationship.
Review this foundation about 4 min
Strong support
- Sets, membership and finite collections
Sets provide the objects and membership rules that give GCD–LCM Product Theorem its discrete meaning.
Review this foundation about 6 min
Optional enrichment
- Ordered arrangements
Permutations connect GCD–LCM Product Theorem to systematic counting and arrangement problems.
Review this foundation about 5 min
Mathematics → algorithm → program
Implement this calculation in code
These are direct reference implementations of the calculator's principal relationship and first output. They run locally and include a small known-answer check where the language supports it.
Algorithm
- Read greatest common divisor, least common multiple.
- Evaluate the principal relationship: c=ab.
- Return absolute integer product and check the domain conditions described above.
Python
from math import *
def gcd_lcm_product_theorem_calculator(a, b) -> float:
return (a * b)
assert abs(gcd_lcm_product_theorem_calculator(6, 60) - 360) < 1e-6 * max(1.0, abs(360))
C
#include <assert.h>
#include <math.h>
double gcd_lcm_product_theorem_calculator(double a, double b) {
return (a * b);
}
int main(void) {
const double expected = 360;
const double actual = gcd_lcm_product_theorem_calculator(6, 60);
assert(fabs(actual - expected) < 1e-6 * fmax(1.0, fabs(expected)));
}
C++
#include <cassert>
#include <cmath>
#include <numbers>
double gcd_lcm_product_theorem_calculator(double a, double b) {
return (a * b);
}
int main() {
constexpr double expected = 360;
const double actual = gcd_lcm_product_theorem_calculator(6, 60);
assert(std::fabs(actual - expected) < 1e-6 * std::fmax(1.0, std::fabs(expected)));
}
Linux x86-64 assembly
x86-64 NASM · System V ABI · Linux · SSE2 with libm where required
; double gcd_lcm_product_theorem_calculator(double a, double b)
; Linux x86-64 NASM · System V ABI · first eight doubles in xmm0–xmm7
global gcd_lcm_product_theorem_calculator
section .text
gcd_lcm_product_theorem_calculator:
push rbp
mov rbp, rsp
sub rsp, 32
movsd [rbp-8], xmm0
movsd [rbp-16], xmm1
movsd xmm0, [rbp-8]
mulsd xmm0, [rbp-16]
movsd [rbp-24], xmm0
movsd xmm0, [rbp-24]
leave
ret
MATLAB
function result = gcd_lcm_product_theorem_calculator(a, b)
result = (a * b);
end
Wolfram Language
ClearAll[mwCalculate];
mwCalculate[a_, b_] := (a * b);
Continue in mathematical software
The downloaded file includes your current inputs and first calculated result. It is created locally.
Floating-point answers can differ slightly by language, compiler and processor. Compare within a suitable tolerance rather than assuming every decimal representation will be identical.
Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS
These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.
APA 7
MW SysArc. (2026, July 21). GCD–LCM Product Theorem Calculator. MW SysArc Tools. https://math.mwsysarc.com/discrete-mathematics/gcd-lcm-product-theorem-calculator
MLA 9
MW SysArc. “GCD–LCM Product Theorem Calculator.” MW SysArc Tools, 21 July 2026, https://math.mwsysarc.com/discrete-mathematics/gcd-lcm-product-theorem-calculator. Accessed 31 Aug. 2026.
Chicago 17
MW SysArc. “GCD–LCM Product Theorem Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed August 31, 2026. https://math.mwsysarc.com/discrete-mathematics/gcd-lcm-product-theorem-calculator.
Harvard
MW SysArc (2026) ‘GCD–LCM Product Theorem Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://math.mwsysarc.com/discrete-mathematics/gcd-lcm-product-theorem-calculator (Accessed: 31 August 2026).
BibTeX and RIS records
BibTeX
@misc{mwsysarc_gcd_lcm_product_theorem_calculator_2026,
author = {{MW SysArc}},
title = {GCD–LCM Product Theorem Calculator},
howpublished = {MW SysArc Tools},
year = {2026},
url = {https://math.mwsysarc.com/discrete-mathematics/gcd-lcm-product-theorem-calculator},
note = {Published July 21, 2026; accessed August 31, 2026}
}RIS
TY - ELEC
AU - MW SysArc
TI - GCD–LCM Product Theorem Calculator
T2 - MW SysArc Tools
PY - 2026
DA - 2026-07-21
Y2 - 2026-08-31
UR - https://math.mwsysarc.com/discrete-mathematics/gcd-lcm-product-theorem-calculator
N1 - Published July 21, 2026
ER -Clear answers
Frequently asked questions
What does the GCD–LCM Product Theorem do?
Calculate absolute integer product from greatest common divisor and least common multiple.
How does the GCD–LCM Product Theorem work?
The calculator applies c=ab. For two nonzero integers, the product of their greatest common divisor and least common multiple equals the absolute product of the integers. This page evaluates the relationship directly.
What can I learn from the GCD–LCM Product Theorem?
It connects the mathematical rule to your chosen numbers and shows each calculation step. Change one input at a time to see how the result responds.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the steps to understand the method, then verify important school or professional work using the notation and rounding rules required in your setting.
Last reviewed . Calculations tested .