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What is the Least Common Multiple of 23638 and 23658?

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 23638 and 23658 is 279613902.

LCM(23638,23658) = 279613902

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Least Common Multiple of 23638 and 23658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23638 and 23658, than apply into the LCM equation.

GCF(23638,23658) = 2
LCM(23638,23658) = ( 23638 × 23658) / 2
LCM(23638,23658) = 559227804 / 2
LCM(23638,23658) = 279613902

Least Common Multiple (LCM) of 23638 and 23658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23638 and 23658. First we will calculate the prime factors of 23638 and 23658.

Prime Factorization of 23638

Prime factors of 23638 are 2, 53, 223. Prime factorization of 23638 in exponential form is:

23638 = 21 × 531 × 2231

Prime Factorization of 23658

Prime factors of 23658 are 2, 3, 3943. Prime factorization of 23658 in exponential form is:

23658 = 21 × 31 × 39431

Now multiplying the highest exponent prime factors to calculate the LCM of 23638 and 23658.

LCM(23638,23658) = 21 × 531 × 2231 × 31 × 39431
LCM(23638,23658) = 279613902