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What is the Least Common Multiple of 27970 and 27987?

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 27970 and 27987 is 782796390.

LCM(27970,27987) = 782796390

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Least Common Multiple of 27970 and 27987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27970 and 27987, than apply into the LCM equation.

GCF(27970,27987) = 1
LCM(27970,27987) = ( 27970 × 27987) / 1
LCM(27970,27987) = 782796390 / 1
LCM(27970,27987) = 782796390

Least Common Multiple (LCM) of 27970 and 27987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27970 and 27987. First we will calculate the prime factors of 27970 and 27987.

Prime Factorization of 27970

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

27970 = 21 × 51 × 27971

Prime Factorization of 27987

Prime factors of 27987 are 3, 19, 491. Prime factorization of 27987 in exponential form is:

27987 = 31 × 191 × 4911

Now multiplying the highest exponent prime factors to calculate the LCM of 27970 and 27987.

LCM(27970,27987) = 21 × 51 × 27971 × 31 × 191 × 4911
LCM(27970,27987) = 782796390