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What is the Least Common Multiple of 91600 and 91615?

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 91600 and 91615 is 1678386800.

LCM(91600,91615) = 1678386800

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Least Common Multiple of 91600 and 91615 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91600 and 91615, than apply into the LCM equation.

GCF(91600,91615) = 5
LCM(91600,91615) = ( 91600 × 91615) / 5
LCM(91600,91615) = 8391934000 / 5
LCM(91600,91615) = 1678386800

Least Common Multiple (LCM) of 91600 and 91615 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91600 and 91615. First we will calculate the prime factors of 91600 and 91615.

Prime Factorization of 91600

Prime factors of 91600 are 2, 5, 229. Prime factorization of 91600 in exponential form is:

91600 = 24 × 52 × 2291

Prime Factorization of 91615

Prime factors of 91615 are 5, 73, 251. Prime factorization of 91615 in exponential form is:

91615 = 51 × 731 × 2511

Now multiplying the highest exponent prime factors to calculate the LCM of 91600 and 91615.

LCM(91600,91615) = 24 × 52 × 2291 × 731 × 2511
LCM(91600,91615) = 1678386800