What is the Least Common Multiple of 61215 and 61230?

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 61215 and 61230 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61215 and 61230, than apply into the LCM equation.

GCF(61215,61230) = 15
LCM(61215,61230) = ( 61215 × 61230) / 15
LCM(61215,61230) = 3748194450 / 15
LCM(61215,61230) = 249879630

Least Common Multiple (LCM) of 61215 and 61230 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61215 and 61230. First we will calculate the prime factors of 61215 and 61230.

Prime Factorization of 61215

Prime Factorization of 61230

Now multiplying the highest exponent prime factors to calculate the LCM of 61215 and 61230.

LCM(61215,61230) = 3¹ × 5¹ × 7¹ × 11¹ × 53¹ × 2¹ × 13¹ × 157¹
LCM(61215,61230) = 249879630