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What is the Least Common Multiple of 77986 and 77991?

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 77986 and 77991 is 6082206126.

LCM(77986,77991) = 6082206126

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Least Common Multiple of 77986 and 77991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77986 and 77991, than apply into the LCM equation.

GCF(77986,77991) = 1
LCM(77986,77991) = ( 77986 × 77991) / 1
LCM(77986,77991) = 6082206126 / 1
LCM(77986,77991) = 6082206126

Least Common Multiple (LCM) of 77986 and 77991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77986 and 77991. First we will calculate the prime factors of 77986 and 77991.

Prime Factorization of 77986

Prime factors of 77986 are 2, 38993. Prime factorization of 77986 in exponential form is:

77986 = 21 × 389931

Prime Factorization of 77991

Prime factors of 77991 are 3, 25997. Prime factorization of 77991 in exponential form is:

77991 = 31 × 259971

Now multiplying the highest exponent prime factors to calculate the LCM of 77986 and 77991.

LCM(77986,77991) = 21 × 389931 × 31 × 259971
LCM(77986,77991) = 6082206126