What is the Least Common Multiple of 2205 and 2212?

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 2205 and 2212 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2205 and 2212, than apply into the LCM equation.

GCF(2205,2212) = 7
LCM(2205,2212) = ( 2205 × 2212) / 7
LCM(2205,2212) = 4877460 / 7
LCM(2205,2212) = 696780

Least Common Multiple (LCM) of 2205 and 2212 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2205 and 2212. First we will calculate the prime factors of 2205 and 2212.

Prime Factorization of 2205

Prime Factorization of 2212

Now multiplying the highest exponent prime factors to calculate the LCM of 2205 and 2212.

LCM(2205,2212) = 3² × 5¹ × 7² × 2² × 79¹
LCM(2205,2212) = 696780