What is the Least Common Multiple of 71553 and 71557?

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 71553 and 71557 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71553 and 71557, than apply into the LCM equation.

GCF(71553,71557) = 1
LCM(71553,71557) = ( 71553 × 71557) / 1
LCM(71553,71557) = 5120118021 / 1
LCM(71553,71557) = 5120118021

Least Common Multiple (LCM) of 71553 and 71557 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71553 and 71557. First we will calculate the prime factors of 71553 and 71557.

Prime Factorization of 71553

Prime Factorization of 71557

Now multiplying the highest exponent prime factors to calculate the LCM of 71553 and 71557.

LCM(71553,71557) = 3¹ × 17¹ × 23¹ × 61¹ × 163¹ × 439¹
LCM(71553,71557) = 5120118021