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What is the Least Common Multiple of 27952 and 27970?

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 27952 and 27970 is 390908720.

LCM(27952,27970) = 390908720

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Least Common Multiple of 27952 and 27970 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27952 and 27970, than apply into the LCM equation.

GCF(27952,27970) = 2
LCM(27952,27970) = ( 27952 × 27970) / 2
LCM(27952,27970) = 781817440 / 2
LCM(27952,27970) = 390908720

Least Common Multiple (LCM) of 27952 and 27970 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27952 and 27970. First we will calculate the prime factors of 27952 and 27970.

Prime Factorization of 27952

Prime factors of 27952 are 2, 1747. Prime factorization of 27952 in exponential form is:

27952 = 24 × 17471

Prime Factorization of 27970

Prime factors of 27970 are 2, 5, 2797. Prime factorization of 27970 in exponential form is:

27970 = 21 × 51 × 27971

Now multiplying the highest exponent prime factors to calculate the LCM of 27952 and 27970.

LCM(27952,27970) = 24 × 17471 × 51 × 27971
LCM(27952,27970) = 390908720