What is the Least Common Multiple of 81731 and 81743?

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 81731 and 81743 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81731 and 81743, than apply into the LCM equation.

GCF(81731,81743) = 1
LCM(81731,81743) = ( 81731 × 81743) / 1
LCM(81731,81743) = 6680937133 / 1
LCM(81731,81743) = 6680937133

Least Common Multiple (LCM) of 81731 and 81743 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81731 and 81743. First we will calculate the prime factors of 81731 and 81743.

Prime Factorization of 81731

Prime Factorization of 81743

Now multiplying the highest exponent prime factors to calculate the LCM of 81731 and 81743.

LCM(81731,81743) = 13¹ × 6287¹ × 43¹ × 1901¹
LCM(81731,81743) = 6680937133