What is the Least Common Multiple of 39216 and 39221?

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 39216 and 39221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39216 and 39221, than apply into the LCM equation.

GCF(39216,39221) = 1
LCM(39216,39221) = ( 39216 × 39221) / 1
LCM(39216,39221) = 1538090736 / 1
LCM(39216,39221) = 1538090736

Least Common Multiple (LCM) of 39216 and 39221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39216 and 39221. First we will calculate the prime factors of 39216 and 39221.

Prime Factorization of 39216

Prime Factorization of 39221

Now multiplying the highest exponent prime factors to calculate the LCM of 39216 and 39221.

LCM(39216,39221) = 2⁴ × 3¹ × 19¹ × 43¹ × 7¹ × 13¹ × 431¹
LCM(39216,39221) = 1538090736