What is the Least Common Multiple of 21012 and 21026?

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 21012 and 21026 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21012 and 21026, than apply into the LCM equation.

GCF(21012,21026) = 2
LCM(21012,21026) = ( 21012 × 21026) / 2
LCM(21012,21026) = 441798312 / 2
LCM(21012,21026) = 220899156

Least Common Multiple (LCM) of 21012 and 21026 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21012 and 21026. First we will calculate the prime factors of 21012 and 21026.

Prime Factorization of 21012

Prime Factorization of 21026

Now multiplying the highest exponent prime factors to calculate the LCM of 21012 and 21026.

LCM(21012,21026) = 2² × 3¹ × 17¹ × 103¹ × 10513¹
LCM(21012,21026) = 220899156