What is the Least Common Multiple of 39415 and 39430?

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 39415 and 39430 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39415 and 39430, than apply into the LCM equation.

GCF(39415,39430) = 5
LCM(39415,39430) = ( 39415 × 39430) / 5
LCM(39415,39430) = 1554133450 / 5
LCM(39415,39430) = 310826690

Least Common Multiple (LCM) of 39415 and 39430 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39415 and 39430. First we will calculate the prime factors of 39415 and 39430.

Prime Factorization of 39415

Prime Factorization of 39430

Now multiplying the highest exponent prime factors to calculate the LCM of 39415 and 39430.

LCM(39415,39430) = 5¹ × 7883¹ × 2¹ × 3943¹
LCM(39415,39430) = 310826690