What is the Least Common Multiple of 39808 and 39816?

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 39808 and 39816 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39808 and 39816, than apply into the LCM equation.

GCF(39808,39816) = 8
LCM(39808,39816) = ( 39808 × 39816) / 8
LCM(39808,39816) = 1584995328 / 8
LCM(39808,39816) = 198124416

Least Common Multiple (LCM) of 39808 and 39816 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39808 and 39816. First we will calculate the prime factors of 39808 and 39816.

Prime Factorization of 39808

Prime Factorization of 39816

Now multiplying the highest exponent prime factors to calculate the LCM of 39808 and 39816.

LCM(39808,39816) = 2⁷ × 311¹ × 3² × 7¹ × 79¹
LCM(39808,39816) = 198124416