What is the Least Common Multiple of 51215 and 51220?

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 51215 and 51220 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51215 and 51220, than apply into the LCM equation.

GCF(51215,51220) = 5
LCM(51215,51220) = ( 51215 × 51220) / 5
LCM(51215,51220) = 2623232300 / 5
LCM(51215,51220) = 524646460

Least Common Multiple (LCM) of 51215 and 51220 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51215 and 51220. First we will calculate the prime factors of 51215 and 51220.

Prime Factorization of 51215

Prime Factorization of 51220

Now multiplying the highest exponent prime factors to calculate the LCM of 51215 and 51220.

LCM(51215,51220) = 5¹ × 10243¹ × 2² × 13¹ × 197¹
LCM(51215,51220) = 524646460