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What is the Least Common Multiple of 74564 and 74568?

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 74564 and 74568 is 1390022088.

LCM(74564,74568) = 1390022088

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Least Common Multiple of 74564 and 74568 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74564 and 74568, than apply into the LCM equation.

GCF(74564,74568) = 4
LCM(74564,74568) = ( 74564 × 74568) / 4
LCM(74564,74568) = 5560088352 / 4
LCM(74564,74568) = 1390022088

Least Common Multiple (LCM) of 74564 and 74568 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74564 and 74568. First we will calculate the prime factors of 74564 and 74568.

Prime Factorization of 74564

Prime factors of 74564 are 2, 7, 2663. Prime factorization of 74564 in exponential form is:

74564 = 22 × 71 × 26631

Prime Factorization of 74568

Prime factors of 74568 are 2, 3, 13, 239. Prime factorization of 74568 in exponential form is:

74568 = 23 × 31 × 131 × 2391

Now multiplying the highest exponent prime factors to calculate the LCM of 74564 and 74568.

LCM(74564,74568) = 23 × 71 × 26631 × 31 × 131 × 2391
LCM(74564,74568) = 1390022088