What is the Least Common Multiple of 68721 and 68731?

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 68721 and 68731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68721 and 68731, than apply into the LCM equation.

GCF(68721,68731) = 1
LCM(68721,68731) = ( 68721 × 68731) / 1
LCM(68721,68731) = 4723263051 / 1
LCM(68721,68731) = 4723263051

Least Common Multiple (LCM) of 68721 and 68731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68721 and 68731. First we will calculate the prime factors of 68721 and 68731.

Prime Factorization of 68721

Prime Factorization of 68731

Now multiplying the highest exponent prime factors to calculate the LCM of 68721 and 68731.

LCM(68721,68731) = 3¹ × 22907¹ × 13¹ × 17¹ × 311¹
LCM(68721,68731) = 4723263051