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What is the Least Common Multiple of 28978 and 28983?

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 28978 and 28983 is 839869374.

LCM(28978,28983) = 839869374

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Least Common Multiple of 28978 and 28983 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28978 and 28983, than apply into the LCM equation.

GCF(28978,28983) = 1
LCM(28978,28983) = ( 28978 × 28983) / 1
LCM(28978,28983) = 839869374 / 1
LCM(28978,28983) = 839869374

Least Common Multiple (LCM) of 28978 and 28983 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28978 and 28983. First we will calculate the prime factors of 28978 and 28983.

Prime Factorization of 28978

Prime factors of 28978 are 2, 14489. Prime factorization of 28978 in exponential form is:

28978 = 21 × 144891

Prime Factorization of 28983

Prime factors of 28983 are 3, 9661. Prime factorization of 28983 in exponential form is:

28983 = 31 × 96611

Now multiplying the highest exponent prime factors to calculate the LCM of 28978 and 28983.

LCM(28978,28983) = 21 × 144891 × 31 × 96611
LCM(28978,28983) = 839869374