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What is the Least Common Multiple of 64686 and 64697?

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 64686 and 64697 is 4184990142.

LCM(64686,64697) = 4184990142

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Least Common Multiple of 64686 and 64697 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64686 and 64697, than apply into the LCM equation.

GCF(64686,64697) = 1
LCM(64686,64697) = ( 64686 × 64697) / 1
LCM(64686,64697) = 4184990142 / 1
LCM(64686,64697) = 4184990142

Least Common Multiple (LCM) of 64686 and 64697 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64686 and 64697. First we will calculate the prime factors of 64686 and 64697.

Prime Factorization of 64686

Prime factors of 64686 are 2, 3, 10781. Prime factorization of 64686 in exponential form is:

64686 = 21 × 31 × 107811

Prime Factorization of 64697

Prime factors of 64697 are 31, 2087. Prime factorization of 64697 in exponential form is:

64697 = 311 × 20871

Now multiplying the highest exponent prime factors to calculate the LCM of 64686 and 64697.

LCM(64686,64697) = 21 × 31 × 107811 × 311 × 20871
LCM(64686,64697) = 4184990142