What is the Least Common Multiple of 72163 and 72173?

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 72163 and 72173 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72163 and 72173, than apply into the LCM equation.

GCF(72163,72173) = 1
LCM(72163,72173) = ( 72163 × 72173) / 1
LCM(72163,72173) = 5208220199 / 1
LCM(72163,72173) = 5208220199

Least Common Multiple (LCM) of 72163 and 72173 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72163 and 72173. First we will calculate the prime factors of 72163 and 72173.

Prime Factorization of 72163

Prime Factorization of 72173

Now multiplying the highest exponent prime factors to calculate the LCM of 72163 and 72173.

LCM(72163,72173) = 7¹ × 13² × 61¹ × 72173¹
LCM(72163,72173) = 5208220199