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What is the Least Common Multiple of 78520 and 78537?

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 78520 and 78537 is 6166725240.

LCM(78520,78537) = 6166725240

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Least Common Multiple of 78520 and 78537 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78520 and 78537, than apply into the LCM equation.

GCF(78520,78537) = 1
LCM(78520,78537) = ( 78520 × 78537) / 1
LCM(78520,78537) = 6166725240 / 1
LCM(78520,78537) = 6166725240

Least Common Multiple (LCM) of 78520 and 78537 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78520 and 78537. First we will calculate the prime factors of 78520 and 78537.

Prime Factorization of 78520

Prime factors of 78520 are 2, 5, 13, 151. Prime factorization of 78520 in exponential form is:

78520 = 23 × 51 × 131 × 1511

Prime Factorization of 78537

Prime factors of 78537 are 3, 47, 557. Prime factorization of 78537 in exponential form is:

78537 = 31 × 471 × 5571

Now multiplying the highest exponent prime factors to calculate the LCM of 78520 and 78537.

LCM(78520,78537) = 23 × 51 × 131 × 1511 × 31 × 471 × 5571
LCM(78520,78537) = 6166725240