What is the Least Common Multiple of 39520 and 39539?

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 39539 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 39539, than apply into the LCM equation.

GCF(39520,39539) = 19
LCM(39520,39539) = ( 39520 × 39539) / 19
LCM(39520,39539) = 1562581280 / 19
LCM(39520,39539) = 82241120

Least Common Multiple (LCM) of 39520 and 39539 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39520 and 39539. First we will calculate the prime factors of 39520 and 39539.

Prime Factorization of 39520

Prime Factorization of 39539

Now multiplying the highest exponent prime factors to calculate the LCM of 39520 and 39539.

LCM(39520,39539) = 2⁵ × 5¹ × 13¹ × 19¹ × 2081¹
LCM(39520,39539) = 82241120