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What is the Least Common Multiple of 74646 and 74659?

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 74646 and 74659 is 428691978.

LCM(74646,74659) = 428691978

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Least Common Multiple of 74646 and 74659 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74646 and 74659, than apply into the LCM equation.

GCF(74646,74659) = 13
LCM(74646,74659) = ( 74646 × 74659) / 13
LCM(74646,74659) = 5572995714 / 13
LCM(74646,74659) = 428691978

Least Common Multiple (LCM) of 74646 and 74659 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74646 and 74659. First we will calculate the prime factors of 74646 and 74659.

Prime Factorization of 74646

Prime factors of 74646 are 2, 3, 11, 13, 29. Prime factorization of 74646 in exponential form is:

74646 = 21 × 32 × 111 × 131 × 291

Prime Factorization of 74659

Prime factors of 74659 are 13, 5743. Prime factorization of 74659 in exponential form is:

74659 = 131 × 57431

Now multiplying the highest exponent prime factors to calculate the LCM of 74646 and 74659.

LCM(74646,74659) = 21 × 32 × 111 × 131 × 291 × 57431
LCM(74646,74659) = 428691978