What is the Least Common Multiple of 39520 and 39528?

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 39520 and 39528 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39520 and 39528, than apply into the LCM equation.

GCF(39520,39528) = 8
LCM(39520,39528) = ( 39520 × 39528) / 8
LCM(39520,39528) = 1562146560 / 8
LCM(39520,39528) = 195268320

Least Common Multiple (LCM) of 39520 and 39528 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39520 and 39528. First we will calculate the prime factors of 39520 and 39528.

Prime Factorization of 39520

Prime Factorization of 39528

Now multiplying the highest exponent prime factors to calculate the LCM of 39520 and 39528.

LCM(39520,39528) = 2⁵ × 5¹ × 13¹ × 19¹ × 3⁴ × 61¹
LCM(39520,39528) = 195268320