What is the Least Common Multiple of 42580 and 42590?

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 42580 and 42590 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42580 and 42590, than apply into the LCM equation.

GCF(42580,42590) = 10
LCM(42580,42590) = ( 42580 × 42590) / 10
LCM(42580,42590) = 1813482200 / 10
LCM(42580,42590) = 181348220

Least Common Multiple (LCM) of 42580 and 42590 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42580 and 42590. First we will calculate the prime factors of 42580 and 42590.

Prime Factorization of 42580

Prime Factorization of 42590

Now multiplying the highest exponent prime factors to calculate the LCM of 42580 and 42590.

LCM(42580,42590) = 2² × 5¹ × 2129¹ × 4259¹
LCM(42580,42590) = 181348220