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What is the Least Common Multiple of 74566 and 74580?

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 74566 and 74580 is 2780566140.

LCM(74566,74580) = 2780566140

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Least Common Multiple of 74566 and 74580 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74566 and 74580, than apply into the LCM equation.

GCF(74566,74580) = 2
LCM(74566,74580) = ( 74566 × 74580) / 2
LCM(74566,74580) = 5561132280 / 2
LCM(74566,74580) = 2780566140

Least Common Multiple (LCM) of 74566 and 74580 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74566 and 74580. First we will calculate the prime factors of 74566 and 74580.

Prime Factorization of 74566

Prime factors of 74566 are 2, 23, 1621. Prime factorization of 74566 in exponential form is:

74566 = 21 × 231 × 16211

Prime Factorization of 74580

Prime factors of 74580 are 2, 3, 5, 11, 113. Prime factorization of 74580 in exponential form is:

74580 = 22 × 31 × 51 × 111 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 74566 and 74580.

LCM(74566,74580) = 22 × 231 × 16211 × 31 × 51 × 111 × 1131
LCM(74566,74580) = 2780566140