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What is the Least Common Multiple of 27968 and 27986?

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 27968 and 27986 is 391356224.

LCM(27968,27986) = 391356224

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Least Common Multiple of 27968 and 27986 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27968 and 27986, than apply into the LCM equation.

GCF(27968,27986) = 2
LCM(27968,27986) = ( 27968 × 27986) / 2
LCM(27968,27986) = 782712448 / 2
LCM(27968,27986) = 391356224

Least Common Multiple (LCM) of 27968 and 27986 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27968 and 27986. First we will calculate the prime factors of 27968 and 27986.

Prime Factorization of 27968

Prime factors of 27968 are 2, 19, 23. Prime factorization of 27968 in exponential form is:

27968 = 26 × 191 × 231

Prime Factorization of 27986

Prime factors of 27986 are 2, 7, 1999. Prime factorization of 27986 in exponential form is:

27986 = 21 × 71 × 19991

Now multiplying the highest exponent prime factors to calculate the LCM of 27968 and 27986.

LCM(27968,27986) = 26 × 191 × 231 × 71 × 19991
LCM(27968,27986) = 391356224