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Program: GCFLCM

GCFLCM

  • Finds the greatest common factor (GCF) and least common multiple (LCM) of any pair of positive numbers.

Useful for:

  • SAT
  • ACT
  • Basic Math
  • Algebra 1
  • Algebra 2

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Example

Q: Find the greatest common factor and least common multiple for the numbers 45 and 80.

Solution:

Run GCFLCM.  How?

Enter the numbers
45 and 80, pressing
ENTER after each one.

The program reports:





Interpretation:

The greatest common factor is 5.
The least common multiple is 720.