What is the Least Common Multiple of 64209 and 64220?

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 64209 and 64220 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64209 and 64220, than apply into the LCM equation.

GCF(64209,64220) = 1
LCM(64209,64220) = ( 64209 × 64220) / 1
LCM(64209,64220) = 4123501980 / 1
LCM(64209,64220) = 4123501980

Least Common Multiple (LCM) of 64209 and 64220 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64209 and 64220. First we will calculate the prime factors of 64209 and 64220.

Prime Factorization of 64209

Prime Factorization of 64220

Now multiplying the highest exponent prime factors to calculate the LCM of 64209 and 64220.

LCM(64209,64220) = 3¹ × 17¹ × 1259¹ × 2² × 5¹ × 13² × 19¹
LCM(64209,64220) = 4123501980