What is the Least Common Multiple of 67715 and 67721?

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 67715 and 67721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67715 and 67721, than apply into the LCM equation.

GCF(67715,67721) = 1
LCM(67715,67721) = ( 67715 × 67721) / 1
LCM(67715,67721) = 4585727515 / 1
LCM(67715,67721) = 4585727515

Least Common Multiple (LCM) of 67715 and 67721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67715 and 67721. First we will calculate the prime factors of 67715 and 67721.

Prime Factorization of 67715

Prime Factorization of 67721

Now multiplying the highest exponent prime factors to calculate the LCM of 67715 and 67721.

LCM(67715,67721) = 5¹ × 29¹ × 467¹ × 241¹ × 281¹
LCM(67715,67721) = 4585727515