What is the Least Common Multiple of 21207 and 21211?

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 21207 and 21211 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21207 and 21211, than apply into the LCM equation.

GCF(21207,21211) = 1
LCM(21207,21211) = ( 21207 × 21211) / 1
LCM(21207,21211) = 449821677 / 1
LCM(21207,21211) = 449821677

Least Common Multiple (LCM) of 21207 and 21211 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21207 and 21211. First we will calculate the prime factors of 21207 and 21211.

Prime Factorization of 21207

Prime Factorization of 21211

Now multiplying the highest exponent prime factors to calculate the LCM of 21207 and 21211.

LCM(21207,21211) = 3¹ × 7069¹ × 21211¹
LCM(21207,21211) = 449821677