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What is the Least Common Multiple of 1617 and 1629?

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 1617 and 1629 is 878031.

LCM(1617,1629) = 878031

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Least Common Multiple of 1617 and 1629 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1617 and 1629, than apply into the LCM equation.

GCF(1617,1629) = 3
LCM(1617,1629) = ( 1617 × 1629) / 3
LCM(1617,1629) = 2634093 / 3
LCM(1617,1629) = 878031

Least Common Multiple (LCM) of 1617 and 1629 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1617 and 1629. First we will calculate the prime factors of 1617 and 1629.

Prime Factorization of 1617

Prime factors of 1617 are 3, 7, 11. Prime factorization of 1617 in exponential form is:

1617 = 31 × 72 × 111

Prime Factorization of 1629

Prime factors of 1629 are 3, 181. Prime factorization of 1629 in exponential form is:

1629 = 32 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 1617 and 1629.

LCM(1617,1629) = 32 × 72 × 111 × 1811
LCM(1617,1629) = 878031