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What is the Least Common Multiple of 16628 and 16638?

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 16628 and 16638 is 138328332.

LCM(16628,16638) = 138328332

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Least Common Multiple of 16628 and 16638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16628 and 16638, than apply into the LCM equation.

GCF(16628,16638) = 2
LCM(16628,16638) = ( 16628 × 16638) / 2
LCM(16628,16638) = 276656664 / 2
LCM(16628,16638) = 138328332

Least Common Multiple (LCM) of 16628 and 16638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16628 and 16638. First we will calculate the prime factors of 16628 and 16638.

Prime Factorization of 16628

Prime factors of 16628 are 2, 4157. Prime factorization of 16628 in exponential form is:

16628 = 22 × 41571

Prime Factorization of 16638

Prime factors of 16638 are 2, 3, 47, 59. Prime factorization of 16638 in exponential form is:

16638 = 21 × 31 × 471 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 16628 and 16638.

LCM(16628,16638) = 22 × 41571 × 31 × 471 × 591
LCM(16628,16638) = 138328332