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What is the Least Common Multiple of 27917 and 27921?

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 27917 and 27921 is 779470557.

LCM(27917,27921) = 779470557

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Least Common Multiple of 27917 and 27921 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27917 and 27921, than apply into the LCM equation.

GCF(27917,27921) = 1
LCM(27917,27921) = ( 27917 × 27921) / 1
LCM(27917,27921) = 779470557 / 1
LCM(27917,27921) = 779470557

Least Common Multiple (LCM) of 27917 and 27921 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27917 and 27921. First we will calculate the prime factors of 27917 and 27921.

Prime Factorization of 27917

Prime factors of 27917 are 27917. Prime factorization of 27917 in exponential form is:

27917 = 279171

Prime Factorization of 27921

Prime factors of 27921 are 3, 41, 227. Prime factorization of 27921 in exponential form is:

27921 = 31 × 411 × 2271

Now multiplying the highest exponent prime factors to calculate the LCM of 27917 and 27921.

LCM(27917,27921) = 279171 × 31 × 411 × 2271
LCM(27917,27921) = 779470557