What is the Least Common Multiple of 91221 and 91230?

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 91221 and 91230 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91221 and 91230, than apply into the LCM equation.

GCF(91221,91230) = 3
LCM(91221,91230) = ( 91221 × 91230) / 3
LCM(91221,91230) = 8322091830 / 3
LCM(91221,91230) = 2774030610

Least Common Multiple (LCM) of 91221 and 91230 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91221 and 91230. First we will calculate the prime factors of 91221 and 91230.

Prime Factorization of 91221

Prime Factorization of 91230

Now multiplying the highest exponent prime factors to calculate the LCM of 91221 and 91230.

LCM(91221,91230) = 3¹ × 13¹ × 2339¹ × 2¹ × 5¹ × 3041¹
LCM(91221,91230) = 2774030610