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What is the Least Common Multiple of 79647 and 79665?

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 79647 and 79665 is 2115026085.

LCM(79647,79665) = 2115026085

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Least Common Multiple of 79647 and 79665 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79647 and 79665, than apply into the LCM equation.

GCF(79647,79665) = 3
LCM(79647,79665) = ( 79647 × 79665) / 3
LCM(79647,79665) = 6345078255 / 3
LCM(79647,79665) = 2115026085

Least Common Multiple (LCM) of 79647 and 79665 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79647 and 79665. First we will calculate the prime factors of 79647 and 79665.

Prime Factorization of 79647

Prime factors of 79647 are 3, 139, 191. Prime factorization of 79647 in exponential form is:

79647 = 31 × 1391 × 1911

Prime Factorization of 79665

Prime factors of 79665 are 3, 5, 47, 113. Prime factorization of 79665 in exponential form is:

79665 = 31 × 51 × 471 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 79647 and 79665.

LCM(79647,79665) = 31 × 1391 × 1911 × 51 × 471 × 1131
LCM(79647,79665) = 2115026085