What is the Least Common Multiple of 6690 and 6705?

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 6690 and 6705 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6690 and 6705, than apply into the LCM equation.

GCF(6690,6705) = 15
LCM(6690,6705) = ( 6690 × 6705) / 15
LCM(6690,6705) = 44856450 / 15
LCM(6690,6705) = 2990430

Least Common Multiple (LCM) of 6690 and 6705 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6690 and 6705. First we will calculate the prime factors of 6690 and 6705.

Prime Factorization of 6690

Prime Factorization of 6705

Now multiplying the highest exponent prime factors to calculate the LCM of 6690 and 6705.

LCM(6690,6705) = 2¹ × 3² × 5¹ × 223¹ × 149¹
LCM(6690,6705) = 2990430