What is the Least Common Multiple of 1604 and 1612?

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 1604 and 1612 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1604 and 1612, than apply into the LCM equation.

GCF(1604,1612) = 4
LCM(1604,1612) = ( 1604 × 1612) / 4
LCM(1604,1612) = 2585648 / 4
LCM(1604,1612) = 646412

Least Common Multiple (LCM) of 1604 and 1612 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1604 and 1612. First we will calculate the prime factors of 1604 and 1612.

Prime Factorization of 1604

Prime Factorization of 1612

Now multiplying the highest exponent prime factors to calculate the LCM of 1604 and 1612.

LCM(1604,1612) = 2² × 401¹ × 13¹ × 31¹
LCM(1604,1612) = 646412