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What is the Least Common Multiple of 64680 and 64694?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 64680 and 64694 is 298886280.

LCM(64680,64694) = 298886280

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Least Common Multiple of 64680 and 64694 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64680 and 64694, than apply into the LCM equation.

GCF(64680,64694) = 14
LCM(64680,64694) = ( 64680 × 64694) / 14
LCM(64680,64694) = 4184407920 / 14
LCM(64680,64694) = 298886280

Least Common Multiple (LCM) of 64680 and 64694 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64680 and 64694. First we will calculate the prime factors of 64680 and 64694.

Prime Factorization of 64680

Prime factors of 64680 are 2, 3, 5, 7, 11. Prime factorization of 64680 in exponential form is:

64680 = 23 × 31 × 51 × 72 × 111

Prime Factorization of 64694

Prime factors of 64694 are 2, 7, 4621. Prime factorization of 64694 in exponential form is:

64694 = 21 × 71 × 46211

Now multiplying the highest exponent prime factors to calculate the LCM of 64680 and 64694.

LCM(64680,64694) = 23 × 31 × 51 × 72 × 111 × 46211
LCM(64680,64694) = 298886280