What is the Least Common Multiple of 51421 and 51440?

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 51421 and 51440 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51421 and 51440, than apply into the LCM equation.

GCF(51421,51440) = 1
LCM(51421,51440) = ( 51421 × 51440) / 1
LCM(51421,51440) = 2645096240 / 1
LCM(51421,51440) = 2645096240

Least Common Multiple (LCM) of 51421 and 51440 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51421 and 51440. First we will calculate the prime factors of 51421 and 51440.

Prime Factorization of 51421

Prime Factorization of 51440

Now multiplying the highest exponent prime factors to calculate the LCM of 51421 and 51440.

LCM(51421,51440) = 51421¹ × 2⁴ × 5¹ × 643¹
LCM(51421,51440) = 2645096240