What is the Least Common Multiple of 65009 and 65020?

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 65009 and 65020 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65009 and 65020, than apply into the LCM equation.

GCF(65009,65020) = 1
LCM(65009,65020) = ( 65009 × 65020) / 1
LCM(65009,65020) = 4226885180 / 1
LCM(65009,65020) = 4226885180

Least Common Multiple (LCM) of 65009 and 65020 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65009 and 65020. First we will calculate the prime factors of 65009 and 65020.

Prime Factorization of 65009

Prime Factorization of 65020

Now multiplying the highest exponent prime factors to calculate the LCM of 65009 and 65020.

LCM(65009,65020) = 7¹ × 37¹ × 251¹ × 2² × 5¹ × 3251¹
LCM(65009,65020) = 4226885180