What is the Least Common Multiple of 64220 and 64228?

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 64220 and 64228 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64220 and 64228, than apply into the LCM equation.

GCF(64220,64228) = 4
LCM(64220,64228) = ( 64220 × 64228) / 4
LCM(64220,64228) = 4124722160 / 4
LCM(64220,64228) = 1031180540

Least Common Multiple (LCM) of 64220 and 64228 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64220 and 64228. First we will calculate the prime factors of 64220 and 64228.

Prime Factorization of 64220

Prime Factorization of 64228

Now multiplying the highest exponent prime factors to calculate the LCM of 64220 and 64228.

LCM(64220,64228) = 2² × 5¹ × 13² × 19¹ × 16057¹
LCM(64220,64228) = 1031180540