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What is the Least Common Multiple of 8500 and 8515?

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 8500 and 8515 is 14475500.

LCM(8500,8515) = 14475500

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Least Common Multiple of 8500 and 8515 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8500 and 8515, than apply into the LCM equation.

GCF(8500,8515) = 5
LCM(8500,8515) = ( 8500 × 8515) / 5
LCM(8500,8515) = 72377500 / 5
LCM(8500,8515) = 14475500

Least Common Multiple (LCM) of 8500 and 8515 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8500 and 8515. First we will calculate the prime factors of 8500 and 8515.

Prime Factorization of 8500

Prime factors of 8500 are 2, 5, 17. Prime factorization of 8500 in exponential form is:

8500 = 22 × 53 × 171

Prime Factorization of 8515

Prime factors of 8515 are 5, 13, 131. Prime factorization of 8515 in exponential form is:

8515 = 51 × 131 × 1311

Now multiplying the highest exponent prime factors to calculate the LCM of 8500 and 8515.

LCM(8500,8515) = 22 × 53 × 171 × 131 × 1311
LCM(8500,8515) = 14475500