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What is the Least Common Multiple of 28977 and 28985?

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 28977 and 28985 is 839898345.

LCM(28977,28985) = 839898345

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Least Common Multiple of 28977 and 28985 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28977 and 28985, than apply into the LCM equation.

GCF(28977,28985) = 1
LCM(28977,28985) = ( 28977 × 28985) / 1
LCM(28977,28985) = 839898345 / 1
LCM(28977,28985) = 839898345

Least Common Multiple (LCM) of 28977 and 28985 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28977 and 28985. First we will calculate the prime factors of 28977 and 28985.

Prime Factorization of 28977

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

28977 = 31 × 131 × 7431

Prime Factorization of 28985

Prime factors of 28985 are 5, 11, 17, 31. Prime factorization of 28985 in exponential form is:

28985 = 51 × 111 × 171 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 28977 and 28985.

LCM(28977,28985) = 31 × 131 × 7431 × 51 × 111 × 171 × 311
LCM(28977,28985) = 839898345