What is the Least Common Multiple of 6620 and 6630?

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 6620 and 6630 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6620 and 6630, than apply into the LCM equation.

GCF(6620,6630) = 10
LCM(6620,6630) = ( 6620 × 6630) / 10
LCM(6620,6630) = 43890600 / 10
LCM(6620,6630) = 4389060

Least Common Multiple (LCM) of 6620 and 6630 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6620 and 6630. First we will calculate the prime factors of 6620 and 6630.

Prime Factorization of 6620

Prime Factorization of 6630

Now multiplying the highest exponent prime factors to calculate the LCM of 6620 and 6630.

LCM(6620,6630) = 2² × 5¹ × 331¹ × 3¹ × 13¹ × 17¹
LCM(6620,6630) = 4389060