What is the Least Common Multiple of 68781 and 68789?

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 68781 and 68789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68781 and 68789, than apply into the LCM equation.

GCF(68781,68789) = 1
LCM(68781,68789) = ( 68781 × 68789) / 1
LCM(68781,68789) = 4731376209 / 1
LCM(68781,68789) = 4731376209

Least Common Multiple (LCM) of 68781 and 68789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68781 and 68789. First we will calculate the prime factors of 68781 and 68789.

Prime Factorization of 68781

Prime Factorization of 68789

Now multiplying the highest exponent prime factors to calculate the LCM of 68781 and 68789.

LCM(68781,68789) = 3¹ × 101¹ × 227¹ × 7¹ × 31¹ × 317¹
LCM(68781,68789) = 4731376209