What is the Least Common Multiple of 64580 and 64590?

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 64580 and 64590 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64580 and 64590, than apply into the LCM equation.

GCF(64580,64590) = 10
LCM(64580,64590) = ( 64580 × 64590) / 10
LCM(64580,64590) = 4171222200 / 10
LCM(64580,64590) = 417122220

Least Common Multiple (LCM) of 64580 and 64590 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64580 and 64590. First we will calculate the prime factors of 64580 and 64590.

Prime Factorization of 64580

Prime Factorization of 64590

Now multiplying the highest exponent prime factors to calculate the LCM of 64580 and 64590.

LCM(64580,64590) = 2² × 5¹ × 3229¹ × 3¹ × 2153¹
LCM(64580,64590) = 417122220