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What is the Least Common Multiple of 69631 and 69640?

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 69631 and 69640 is 4849102840.

LCM(69631,69640) = 4849102840

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Least Common Multiple of 69631 and 69640 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69631 and 69640, than apply into the LCM equation.

GCF(69631,69640) = 1
LCM(69631,69640) = ( 69631 × 69640) / 1
LCM(69631,69640) = 4849102840 / 1
LCM(69631,69640) = 4849102840

Least Common Multiple (LCM) of 69631 and 69640 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69631 and 69640. First we will calculate the prime factors of 69631 and 69640.

Prime Factorization of 69631

Prime factors of 69631 are 179, 389. Prime factorization of 69631 in exponential form is:

69631 = 1791 × 3891

Prime Factorization of 69640

Prime factors of 69640 are 2, 5, 1741. Prime factorization of 69640 in exponential form is:

69640 = 23 × 51 × 17411

Now multiplying the highest exponent prime factors to calculate the LCM of 69631 and 69640.

LCM(69631,69640) = 1791 × 3891 × 23 × 51 × 17411
LCM(69631,69640) = 4849102840