What is the Least Common Multiple of 21231 and 21246?

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 21231 and 21246 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21231 and 21246, than apply into the LCM equation.

GCF(21231,21246) = 3
LCM(21231,21246) = ( 21231 × 21246) / 3
LCM(21231,21246) = 451073826 / 3
LCM(21231,21246) = 150357942

Least Common Multiple (LCM) of 21231 and 21246 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21231 and 21246. First we will calculate the prime factors of 21231 and 21246.

Prime Factorization of 21231

Prime Factorization of 21246

Now multiplying the highest exponent prime factors to calculate the LCM of 21231 and 21246.

LCM(21231,21246) = 3² × 7¹ × 337¹ × 2¹ × 3541¹
LCM(21231,21246) = 150357942