What is the Least Common Multiple of 51440 and 51457?

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 51440 and 51457 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51440 and 51457, than apply into the LCM equation.

GCF(51440,51457) = 1
LCM(51440,51457) = ( 51440 × 51457) / 1
LCM(51440,51457) = 2646948080 / 1
LCM(51440,51457) = 2646948080

Least Common Multiple (LCM) of 51440 and 51457 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51440 and 51457. First we will calculate the prime factors of 51440 and 51457.

Prime Factorization of 51440

Prime Factorization of 51457

Now multiplying the highest exponent prime factors to calculate the LCM of 51440 and 51457.

LCM(51440,51457) = 2⁴ × 5¹ × 643¹ × 7¹ × 7351¹
LCM(51440,51457) = 2646948080