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What is the Least Common Multiple of 28976 and 28993?

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 28993 is 840101168.

LCM(28976,28993) = 840101168

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Least Common Multiple of 28976 and 28993 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 28993, than apply into the LCM equation.

GCF(28976,28993) = 1
LCM(28976,28993) = ( 28976 × 28993) / 1
LCM(28976,28993) = 840101168 / 1
LCM(28976,28993) = 840101168

Least Common Multiple (LCM) of 28976 and 28993 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28976 and 28993. First we will calculate the prime factors of 28976 and 28993.

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 28993

Prime factors of 28993 are 79, 367. Prime factorization of 28993 in exponential form is:

28993 = 791 × 3671

Now multiplying the highest exponent prime factors to calculate the LCM of 28976 and 28993.

LCM(28976,28993) = 24 × 18111 × 791 × 3671
LCM(28976,28993) = 840101168