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What is the Least Common Multiple of 18908 and 18915?

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 18908 and 18915 is 357644820.

LCM(18908,18915) = 357644820

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Least Common Multiple of 18908 and 18915 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18908 and 18915, than apply into the LCM equation.

GCF(18908,18915) = 1
LCM(18908,18915) = ( 18908 × 18915) / 1
LCM(18908,18915) = 357644820 / 1
LCM(18908,18915) = 357644820

Least Common Multiple (LCM) of 18908 and 18915 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18908 and 18915. First we will calculate the prime factors of 18908 and 18915.

Prime Factorization of 18908

Prime factors of 18908 are 2, 29, 163. Prime factorization of 18908 in exponential form is:

18908 = 22 × 291 × 1631

Prime Factorization of 18915

Prime factors of 18915 are 3, 5, 13, 97. Prime factorization of 18915 in exponential form is:

18915 = 31 × 51 × 131 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 18908 and 18915.

LCM(18908,18915) = 22 × 291 × 1631 × 31 × 51 × 131 × 971
LCM(18908,18915) = 357644820