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What is the Least Common Multiple of 28272 and 28286?

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 28272 and 28286 is 399850896.

LCM(28272,28286) = 399850896

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Least Common Multiple of 28272 and 28286 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28272 and 28286, than apply into the LCM equation.

GCF(28272,28286) = 2
LCM(28272,28286) = ( 28272 × 28286) / 2
LCM(28272,28286) = 799701792 / 2
LCM(28272,28286) = 399850896

Least Common Multiple (LCM) of 28272 and 28286 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28272 and 28286. First we will calculate the prime factors of 28272 and 28286.

Prime Factorization of 28272

Prime factors of 28272 are 2, 3, 19, 31. Prime factorization of 28272 in exponential form is:

28272 = 24 × 31 × 191 × 311

Prime Factorization of 28286

Prime factors of 28286 are 2, 14143. Prime factorization of 28286 in exponential form is:

28286 = 21 × 141431

Now multiplying the highest exponent prime factors to calculate the LCM of 28272 and 28286.

LCM(28272,28286) = 24 × 31 × 191 × 311 × 141431
LCM(28272,28286) = 399850896