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What is the Least Common Multiple of 28615 and 28625?

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 28615 and 28625 is 163820875.

LCM(28615,28625) = 163820875

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Least Common Multiple of 28615 and 28625 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28615 and 28625, than apply into the LCM equation.

GCF(28615,28625) = 5
LCM(28615,28625) = ( 28615 × 28625) / 5
LCM(28615,28625) = 819104375 / 5
LCM(28615,28625) = 163820875

Least Common Multiple (LCM) of 28615 and 28625 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28615 and 28625. First we will calculate the prime factors of 28615 and 28625.

Prime Factorization of 28615

Prime factors of 28615 are 5, 59, 97. Prime factorization of 28615 in exponential form is:

28615 = 51 × 591 × 971

Prime Factorization of 28625

Prime factors of 28625 are 5, 229. Prime factorization of 28625 in exponential form is:

28625 = 53 × 2291

Now multiplying the highest exponent prime factors to calculate the LCM of 28615 and 28625.

LCM(28615,28625) = 53 × 591 × 971 × 2291
LCM(28615,28625) = 163820875