What is the Least Common Multiple of 68685 and 68689?

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 68685 and 68689 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68685 and 68689, than apply into the LCM equation.

GCF(68685,68689) = 1
LCM(68685,68689) = ( 68685 × 68689) / 1
LCM(68685,68689) = 4717903965 / 1
LCM(68685,68689) = 4717903965

Least Common Multiple (LCM) of 68685 and 68689 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68685 and 68689. First we will calculate the prime factors of 68685 and 68689.

Prime Factorization of 68685

Prime Factorization of 68689

Now multiplying the highest exponent prime factors to calculate the LCM of 68685 and 68689.

LCM(68685,68689) = 3¹ × 5¹ × 19¹ × 241¹ × 149¹ × 461¹
LCM(68685,68689) = 4717903965