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What is the Least Common Multiple of 17646 and 17663?

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 17646 and 17663 is 18334194.

LCM(17646,17663) = 18334194

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Least Common Multiple of 17646 and 17663 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17646 and 17663, than apply into the LCM equation.

GCF(17646,17663) = 17
LCM(17646,17663) = ( 17646 × 17663) / 17
LCM(17646,17663) = 311681298 / 17
LCM(17646,17663) = 18334194

Least Common Multiple (LCM) of 17646 and 17663 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17646 and 17663. First we will calculate the prime factors of 17646 and 17663.

Prime Factorization of 17646

Prime factors of 17646 are 2, 3, 17, 173. Prime factorization of 17646 in exponential form is:

17646 = 21 × 31 × 171 × 1731

Prime Factorization of 17663

Prime factors of 17663 are 17, 1039. Prime factorization of 17663 in exponential form is:

17663 = 171 × 10391

Now multiplying the highest exponent prime factors to calculate the LCM of 17646 and 17663.

LCM(17646,17663) = 21 × 31 × 171 × 1731 × 10391
LCM(17646,17663) = 18334194