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What is the Least Common Multiple of 83972 and 83991?

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 83972 and 83991 is 7052892252.

LCM(83972,83991) = 7052892252

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Least Common Multiple of 83972 and 83991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83972 and 83991, than apply into the LCM equation.

GCF(83972,83991) = 1
LCM(83972,83991) = ( 83972 × 83991) / 1
LCM(83972,83991) = 7052892252 / 1
LCM(83972,83991) = 7052892252

Least Common Multiple (LCM) of 83972 and 83991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83972 and 83991. First we will calculate the prime factors of 83972 and 83991.

Prime Factorization of 83972

Prime factors of 83972 are 2, 7, 2999. Prime factorization of 83972 in exponential form is:

83972 = 22 × 71 × 29991

Prime Factorization of 83991

Prime factors of 83991 are 3, 27997. Prime factorization of 83991 in exponential form is:

83991 = 31 × 279971

Now multiplying the highest exponent prime factors to calculate the LCM of 83972 and 83991.

LCM(83972,83991) = 22 × 71 × 29991 × 31 × 279971
LCM(83972,83991) = 7052892252