What is the Least Common Multiple of 7645 and 7655?

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 7645 and 7655 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7645 and 7655, than apply into the LCM equation.

GCF(7645,7655) = 5
LCM(7645,7655) = ( 7645 × 7655) / 5
LCM(7645,7655) = 58522475 / 5
LCM(7645,7655) = 11704495

Least Common Multiple (LCM) of 7645 and 7655 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7645 and 7655. First we will calculate the prime factors of 7645 and 7655.

Prime Factorization of 7645

Prime Factorization of 7655

Now multiplying the highest exponent prime factors to calculate the LCM of 7645 and 7655.

LCM(7645,7655) = 5¹ × 11¹ × 139¹ × 1531¹
LCM(7645,7655) = 11704495