What is the Least Common Multiple of 42731 and 42743?

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 42731 and 42743 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42731 and 42743, than apply into the LCM equation.

GCF(42731,42743) = 1
LCM(42731,42743) = ( 42731 × 42743) / 1
LCM(42731,42743) = 1826451133 / 1
LCM(42731,42743) = 1826451133

Least Common Multiple (LCM) of 42731 and 42743 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42731 and 42743. First we will calculate the prime factors of 42731 and 42743.

Prime Factorization of 42731

Prime Factorization of 42743

Now multiplying the highest exponent prime factors to calculate the LCM of 42731 and 42743.

LCM(42731,42743) = 13¹ × 19¹ × 173¹ × 42743¹
LCM(42731,42743) = 1826451133