What is the Least Common Multiple of 72971 and 72991?

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 72971 and 72991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72971 and 72991, than apply into the LCM equation.

GCF(72971,72991) = 1
LCM(72971,72991) = ( 72971 × 72991) / 1
LCM(72971,72991) = 5326226261 / 1
LCM(72971,72991) = 5326226261

Least Common Multiple (LCM) of 72971 and 72991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72971 and 72991. First we will calculate the prime factors of 72971 and 72991.

Prime Factorization of 72971

Prime Factorization of 72991

Now multiplying the highest exponent prime factors to calculate the LCM of 72971 and 72991.

LCM(72971,72991) = 43¹ × 1697¹ × 47¹ × 1553¹
LCM(72971,72991) = 5326226261