What is the Least Common Multiple of 72685 and 72689?

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 72685 and 72689 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72685 and 72689, than apply into the LCM equation.

GCF(72685,72689) = 1
LCM(72685,72689) = ( 72685 × 72689) / 1
LCM(72685,72689) = 5283399965 / 1
LCM(72685,72689) = 5283399965

Least Common Multiple (LCM) of 72685 and 72689 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72685 and 72689. First we will calculate the prime factors of 72685 and 72689.

Prime Factorization of 72685

Prime Factorization of 72689

Now multiplying the highest exponent prime factors to calculate the LCM of 72685 and 72689.

LCM(72685,72689) = 5¹ × 14537¹ × 72689¹
LCM(72685,72689) = 5283399965