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What is the Least Common Multiple of 9115 and 9128?

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 9115 and 9128 is 83201720.

LCM(9115,9128) = 83201720

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Least Common Multiple of 9115 and 9128 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9115 and 9128, than apply into the LCM equation.

GCF(9115,9128) = 1
LCM(9115,9128) = ( 9115 × 9128) / 1
LCM(9115,9128) = 83201720 / 1
LCM(9115,9128) = 83201720

Least Common Multiple (LCM) of 9115 and 9128 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9115 and 9128. First we will calculate the prime factors of 9115 and 9128.

Prime Factorization of 9115

Prime factors of 9115 are 5, 1823. Prime factorization of 9115 in exponential form is:

9115 = 51 × 18231

Prime Factorization of 9128

Prime factors of 9128 are 2, 7, 163. Prime factorization of 9128 in exponential form is:

9128 = 23 × 71 × 1631

Now multiplying the highest exponent prime factors to calculate the LCM of 9115 and 9128.

LCM(9115,9128) = 51 × 18231 × 23 × 71 × 1631
LCM(9115,9128) = 83201720