GCF LCM Calculator

About GCF LCM Calculator

Find greatest common factor and least common multiple.

How to Use

Find greatest common factor and least common multiple. Enter the Value A and Value B values and review the GCF and LCM outputs after you calculate.

  1. Open the calculator : Use GCF LCM Calculator from the Math category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What formula does the GCF LCM Calculator use?

LCM(a,b) = abs(a*b) / GCF(a,b).

Inputs

  • Value A
  • Value B

Outputs

  • GCF
  • LCM

Formula

LCM(a,b) = abs(a*b) / GCF(a,b)