What is the Least Common Multiple of 51438 and 51442?

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 51438 and 51442 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51438 and 51442, than apply into the LCM equation.

GCF(51438,51442) = 2
LCM(51438,51442) = ( 51438 × 51442) / 2
LCM(51438,51442) = 2646073596 / 2
LCM(51438,51442) = 1323036798

Least Common Multiple (LCM) of 51438 and 51442 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51438 and 51442. First we will calculate the prime factors of 51438 and 51442.

Prime Factorization of 51438

Prime Factorization of 51442

Now multiplying the highest exponent prime factors to calculate the LCM of 51438 and 51442.

LCM(51438,51442) = 2¹ × 3¹ × 8573¹ × 17² × 89¹
LCM(51438,51442) = 1323036798