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What is the Least Common Multiple of 27998 and 28017?

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 27998 and 28017 is 784419966.

LCM(27998,28017) = 784419966

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Least Common Multiple of 27998 and 28017 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27998 and 28017, than apply into the LCM equation.

GCF(27998,28017) = 1
LCM(27998,28017) = ( 27998 × 28017) / 1
LCM(27998,28017) = 784419966 / 1
LCM(27998,28017) = 784419966

Least Common Multiple (LCM) of 27998 and 28017 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27998 and 28017. First we will calculate the prime factors of 27998 and 28017.

Prime Factorization of 27998

Prime factors of 27998 are 2, 13999. Prime factorization of 27998 in exponential form is:

27998 = 21 × 139991

Prime Factorization of 28017

Prime factors of 28017 are 3, 11, 283. Prime factorization of 28017 in exponential form is:

28017 = 32 × 111 × 2831

Now multiplying the highest exponent prime factors to calculate the LCM of 27998 and 28017.

LCM(27998,28017) = 21 × 139991 × 32 × 111 × 2831
LCM(27998,28017) = 784419966