What is the Least Common Multiple of 1611 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 of 1611 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 1611 and 1629, than apply into the LCM equation.

GCF(1611,1629) = 9
LCM(1611,1629) = ( 1611 × 1629) / 9
LCM(1611,1629) = 2624319 / 9
LCM(1611,1629) = 291591

Least Common Multiple (LCM) of 1611 and 1629 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1611 and 1629. First we will calculate the prime factors of 1611 and 1629.

Prime Factorization of 1611

Prime Factorization of 1629

Now multiplying the highest exponent prime factors to calculate the LCM of 1611 and 1629.

LCM(1611,1629) = 3² × 179¹ × 181¹
LCM(1611,1629) = 291591