What is the Least Common Multiple of 64780 and 64786?

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 64780 and 64786 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64780 and 64786, than apply into the LCM equation.

GCF(64780,64786) = 2
LCM(64780,64786) = ( 64780 × 64786) / 2
LCM(64780,64786) = 4196837080 / 2
LCM(64780,64786) = 2098418540

Least Common Multiple (LCM) of 64780 and 64786 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64780 and 64786. First we will calculate the prime factors of 64780 and 64786.

Prime Factorization of 64780

Prime Factorization of 64786

Now multiplying the highest exponent prime factors to calculate the LCM of 64780 and 64786.

LCM(64780,64786) = 2² × 5¹ × 41¹ × 79¹ × 29¹ × 1117¹
LCM(64780,64786) = 2098418540