Best Answer

GCF: 7

LCM: 147

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Q: What is the greatest common factor and least common multiple of 21 and 49?

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The greatest common factor is 2 and the least common multiple is also 2.

Greatest common factor (GCF) =7 Least common multiple (LCM) =693

The greatest common factor of 20 and 120 is 20, and the least common multiple of 20 and 120 is 120

The Greatest Common Factor (GCF) of (32,49) is 1The Least Common Multiple (LCM) of (32,49) is 1568

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The least common multiple is the product of the two numbers divided by their greatest common factor. Their greatest common factor is 8, so the least common multiple is 56 x 64 ÷ 8 = 448.

The least common multiple is the product of the two numbers divided by their greatest common factor. The greatest common factor of 44 and 60 is 4, so the least common multiple is 44 x 60 ÷ 4 = 660.

the least common multiple is what the numbers you are using divide into. e.g. 3 and 6 have 12 as the common factor. the greatest common factor is what divides into your numbers. 6 and 9 have 3 as the greatest common factor

The Greatest Common Factor of 15, 45: 15The Least Common Multiple of 15, 45: 45

The Least Common Multiple of 29, 7 is 203.