What is the Least Common Multiple of 68791 and 68809?

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 68791 and 68809 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68791 and 68809, than apply into the LCM equation.

GCF(68791,68809) = 1
LCM(68791,68809) = ( 68791 × 68809) / 1
LCM(68791,68809) = 4733439919 / 1
LCM(68791,68809) = 4733439919

Least Common Multiple (LCM) of 68791 and 68809 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68791 and 68809. First we will calculate the prime factors of 68791 and 68809.

Prime Factorization of 68791

Prime Factorization of 68809

Now multiplying the highest exponent prime factors to calculate the LCM of 68791 and 68809.

LCM(68791,68809) = 68791¹ × 13¹ × 67¹ × 79¹
LCM(68791,68809) = 4733439919