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What is the Least Common Multiple of 3918 and 3931?

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 3918 and 3931 is 15401658.

LCM(3918,3931) = 15401658

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Least Common Multiple of 3918 and 3931 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3918 and 3931, than apply into the LCM equation.

GCF(3918,3931) = 1
LCM(3918,3931) = ( 3918 × 3931) / 1
LCM(3918,3931) = 15401658 / 1
LCM(3918,3931) = 15401658

Least Common Multiple (LCM) of 3918 and 3931 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3918 and 3931. First we will calculate the prime factors of 3918 and 3931.

Prime Factorization of 3918

Prime factors of 3918 are 2, 3, 653. Prime factorization of 3918 in exponential form is:

3918 = 21 × 31 × 6531

Prime Factorization of 3931

Prime factors of 3931 are 3931. Prime factorization of 3931 in exponential form is:

3931 = 39311

Now multiplying the highest exponent prime factors to calculate the LCM of 3918 and 3931.

LCM(3918,3931) = 21 × 31 × 6531 × 39311
LCM(3918,3931) = 15401658