What is the Least Common Multiple of 21111 and 21126?

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 21111 and 21126 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21111 and 21126, than apply into the LCM equation.

GCF(21111,21126) = 3
LCM(21111,21126) = ( 21111 × 21126) / 3
LCM(21111,21126) = 445990986 / 3
LCM(21111,21126) = 148663662

Least Common Multiple (LCM) of 21111 and 21126 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21111 and 21126. First we will calculate the prime factors of 21111 and 21126.

Prime Factorization of 21111

Prime Factorization of 21126

Now multiplying the highest exponent prime factors to calculate the LCM of 21111 and 21126.

LCM(21111,21126) = 3¹ × 31¹ × 227¹ × 2¹ × 7¹ × 503¹
LCM(21111,21126) = 148663662