What is the Least Common Multiple of 39309 and 39315?

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 39309 and 39315 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39309 and 39315, than apply into the LCM equation.

GCF(39309,39315) = 3
LCM(39309,39315) = ( 39309 × 39315) / 3
LCM(39309,39315) = 1545433335 / 3
LCM(39309,39315) = 515144445

Least Common Multiple (LCM) of 39309 and 39315 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39309 and 39315. First we will calculate the prime factors of 39309 and 39315.

Prime Factorization of 39309

Prime Factorization of 39315

Now multiplying the highest exponent prime factors to calculate the LCM of 39309 and 39315.

LCM(39309,39315) = 3¹ × 13103¹ × 5¹ × 2621¹
LCM(39309,39315) = 515144445