What is the Least Common Multiple of 42520 and 42539?

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 42520 and 42539 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42520 and 42539, than apply into the LCM equation.

GCF(42520,42539) = 1
LCM(42520,42539) = ( 42520 × 42539) / 1
LCM(42520,42539) = 1808758280 / 1
LCM(42520,42539) = 1808758280

Least Common Multiple (LCM) of 42520 and 42539 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42520 and 42539. First we will calculate the prime factors of 42520 and 42539.

Prime Factorization of 42520

Prime Factorization of 42539

Now multiplying the highest exponent prime factors to calculate the LCM of 42520 and 42539.

LCM(42520,42539) = 2³ × 5¹ × 1063¹ × 7¹ × 59¹ × 103¹
LCM(42520,42539) = 1808758280