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What is the Least Common Multiple of 67564 and 67578?

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 67564 and 67578 is 326131428.

LCM(67564,67578) = 326131428

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Least Common Multiple of 67564 and 67578 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67564 and 67578, than apply into the LCM equation.

GCF(67564,67578) = 14
LCM(67564,67578) = ( 67564 × 67578) / 14
LCM(67564,67578) = 4565839992 / 14
LCM(67564,67578) = 326131428

Least Common Multiple (LCM) of 67564 and 67578 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67564 and 67578. First we will calculate the prime factors of 67564 and 67578.

Prime Factorization of 67564

Prime factors of 67564 are 2, 7, 19, 127. Prime factorization of 67564 in exponential form is:

67564 = 22 × 71 × 191 × 1271

Prime Factorization of 67578

Prime factors of 67578 are 2, 3, 7, 1609. Prime factorization of 67578 in exponential form is:

67578 = 21 × 31 × 71 × 16091

Now multiplying the highest exponent prime factors to calculate the LCM of 67564 and 67578.

LCM(67564,67578) = 22 × 71 × 191 × 1271 × 31 × 16091
LCM(67564,67578) = 326131428