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What is the Least Common Multiple of 28957 and 28977?

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 28957 and 28977 is 839086989.

LCM(28957,28977) = 839086989

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Least Common Multiple of 28957 and 28977 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28957 and 28977, than apply into the LCM equation.

GCF(28957,28977) = 1
LCM(28957,28977) = ( 28957 × 28977) / 1
LCM(28957,28977) = 839086989 / 1
LCM(28957,28977) = 839086989

Least Common Multiple (LCM) of 28957 and 28977 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28957 and 28977. First we will calculate the prime factors of 28957 and 28977.

Prime Factorization of 28957

Prime factors of 28957 are 23, 1259. Prime factorization of 28957 in exponential form is:

28957 = 231 × 12591

Prime Factorization of 28977

Prime factors of 28977 are 3, 13, 743. Prime factorization of 28977 in exponential form is:

28977 = 31 × 131 × 7431

Now multiplying the highest exponent prime factors to calculate the LCM of 28957 and 28977.

LCM(28957,28977) = 231 × 12591 × 31 × 131 × 7431
LCM(28957,28977) = 839086989