What is the Least Common Multiple of 8645 and 8658?

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 8645 and 8658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8645 and 8658, than apply into the LCM equation.

GCF(8645,8658) = 13
LCM(8645,8658) = ( 8645 × 8658) / 13
LCM(8645,8658) = 74848410 / 13
LCM(8645,8658) = 5757570

Least Common Multiple (LCM) of 8645 and 8658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8645 and 8658. First we will calculate the prime factors of 8645 and 8658.

Prime Factorization of 8645

Prime Factorization of 8658

Now multiplying the highest exponent prime factors to calculate the LCM of 8645 and 8658.

LCM(8645,8658) = 5¹ × 7¹ × 13¹ × 19¹ × 2¹ × 3² × 37¹
LCM(8645,8658) = 5757570