What is the Least Common Multiple of 71457 and 71472?

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 71457 and 71472 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71457 and 71472, than apply into the LCM equation.

GCF(71457,71472) = 3
LCM(71457,71472) = ( 71457 × 71472) / 3
LCM(71457,71472) = 5107174704 / 3
LCM(71457,71472) = 1702391568

Least Common Multiple (LCM) of 71457 and 71472 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71457 and 71472. First we will calculate the prime factors of 71457 and 71472.

Prime Factorization of 71457

Prime Factorization of 71472

Now multiplying the highest exponent prime factors to calculate the LCM of 71457 and 71472.

LCM(71457,71472) = 3¹ × 23819¹ × 2⁴ × 1489¹
LCM(71457,71472) = 1702391568