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What is the Least Common Multiple of 14620 and 14638?

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 14620 and 14638 is 107003780.

LCM(14620,14638) = 107003780

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Least Common Multiple of 14620 and 14638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 14620 and 14638, than apply into the LCM equation.

GCF(14620,14638) = 2
LCM(14620,14638) = ( 14620 × 14638) / 2
LCM(14620,14638) = 214007560 / 2
LCM(14620,14638) = 107003780

Least Common Multiple (LCM) of 14620 and 14638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 14620 and 14638. First we will calculate the prime factors of 14620 and 14638.

Prime Factorization of 14620

Prime factors of 14620 are 2, 5, 17, 43. Prime factorization of 14620 in exponential form is:

14620 = 22 × 51 × 171 × 431

Prime Factorization of 14638

Prime factors of 14638 are 2, 13, 563. Prime factorization of 14638 in exponential form is:

14638 = 21 × 131 × 5631

Now multiplying the highest exponent prime factors to calculate the LCM of 14620 and 14638.

LCM(14620,14638) = 22 × 51 × 171 × 431 × 131 × 5631
LCM(14620,14638) = 107003780