What is the Least Common Multiple of 72457 and 72473?

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 72457 and 72473 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72457 and 72473, than apply into the LCM equation.

GCF(72457,72473) = 1
LCM(72457,72473) = ( 72457 × 72473) / 1
LCM(72457,72473) = 5251176161 / 1
LCM(72457,72473) = 5251176161

Least Common Multiple (LCM) of 72457 and 72473 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72457 and 72473. First we will calculate the prime factors of 72457 and 72473.

Prime Factorization of 72457

Prime Factorization of 72473

Now multiplying the highest exponent prime factors to calculate the LCM of 72457 and 72473.

LCM(72457,72473) = 7¹ × 11¹ × 941¹ × 23² × 137¹
LCM(72457,72473) = 5251176161