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What is the Least Common Multiple of 68636 and 68642?

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 68636 and 68642 is 2355656156.

LCM(68636,68642) = 2355656156

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Least Common Multiple of 68636 and 68642 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68636 and 68642, than apply into the LCM equation.

GCF(68636,68642) = 2
LCM(68636,68642) = ( 68636 × 68642) / 2
LCM(68636,68642) = 4711312312 / 2
LCM(68636,68642) = 2355656156

Least Common Multiple (LCM) of 68636 and 68642 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68636 and 68642. First we will calculate the prime factors of 68636 and 68642.

Prime Factorization of 68636

Prime factors of 68636 are 2, 17159. Prime factorization of 68636 in exponential form is:

68636 = 22 × 171591

Prime Factorization of 68642

Prime factors of 68642 are 2, 7, 4903. Prime factorization of 68642 in exponential form is:

68642 = 21 × 71 × 49031

Now multiplying the highest exponent prime factors to calculate the LCM of 68636 and 68642.

LCM(68636,68642) = 22 × 171591 × 71 × 49031
LCM(68636,68642) = 2355656156