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What is the Least Common Multiple of 68619 and 68631?

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 68619 and 68631 is 1569796863.

LCM(68619,68631) = 1569796863

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Least Common Multiple of 68619 and 68631 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68619 and 68631, than apply into the LCM equation.

GCF(68619,68631) = 3
LCM(68619,68631) = ( 68619 × 68631) / 3
LCM(68619,68631) = 4709390589 / 3
LCM(68619,68631) = 1569796863

Least Common Multiple (LCM) of 68619 and 68631 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68619 and 68631. First we will calculate the prime factors of 68619 and 68631.

Prime Factorization of 68619

Prime factors of 68619 are 3, 89, 257. Prime factorization of 68619 in exponential form is:

68619 = 31 × 891 × 2571

Prime Factorization of 68631

Prime factors of 68631 are 3, 22877. Prime factorization of 68631 in exponential form is:

68631 = 31 × 228771

Now multiplying the highest exponent prime factors to calculate the LCM of 68619 and 68631.

LCM(68619,68631) = 31 × 891 × 2571 × 228771
LCM(68619,68631) = 1569796863