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What is the Least Common Multiple of 28976 and 28982?

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 28976 and 28982 is 419891216.

LCM(28976,28982) = 419891216

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Least Common Multiple of 28976 and 28982 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28976 and 28982, than apply into the LCM equation.

GCF(28976,28982) = 2
LCM(28976,28982) = ( 28976 × 28982) / 2
LCM(28976,28982) = 839782432 / 2
LCM(28976,28982) = 419891216

Least Common Multiple (LCM) of 28976 and 28982 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28976 and 28982. First we will calculate the prime factors of 28976 and 28982.

Prime Factorization of 28976

Prime factors of 28976 are 2, 1811. Prime factorization of 28976 in exponential form is:

28976 = 24 × 18111

Prime Factorization of 28982

Prime factors of 28982 are 2, 43, 337. Prime factorization of 28982 in exponential form is:

28982 = 21 × 431 × 3371

Now multiplying the highest exponent prime factors to calculate the LCM of 28976 and 28982.

LCM(28976,28982) = 24 × 18111 × 431 × 3371
LCM(28976,28982) = 419891216