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Gcf you use when you are finding the greatest factor for the numbers.

Lcm you use when you are finding the smallest multiple in the numbers factors

Q: When do you use GCF and LCM?

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The GCF is 4.

The LCM is 11592. The GCF is 2.

The GCF refers to whole numbers, not decimals.

The LCM is their product. The GCF is 1.

The LCM is 1260. The GCF is 12.

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you use the lcm (least common multiple).

To find the GCF and the LCM you have to first at least try to use prime factorization. So use factor trees. Or for the LCM find th least common multiples of the number.

To answer GCF and LCM questions.

Use the GCF to reduce fractions. Use the LCM to add and subtract unlike fractions. Carpenters work with fractions a lot.

The GCF is 12. The LCM is 360.

The GCF is 4.

The GCF is 68, the LCM is 68

GCF is 2.LCM is 42.The GCF is 2.

The LCM is 11592. The GCF is 2.

The GCF and LCM of 24 and 42 are 6 and 168 respectively.

The GCF refers to whole numbers, not decimals.

The GCF is: 16The LCM is: 640The LCM is: 640