What is the Least Common Multiple of 7398 and 7405?

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 7398 and 7405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7398 and 7405, than apply into the LCM equation.

GCF(7398,7405) = 1
LCM(7398,7405) = ( 7398 × 7405) / 1
LCM(7398,7405) = 54782190 / 1
LCM(7398,7405) = 54782190

Least Common Multiple (LCM) of 7398 and 7405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7398 and 7405. First we will calculate the prime factors of 7398 and 7405.

Prime Factorization of 7398

Prime Factorization of 7405

Now multiplying the highest exponent prime factors to calculate the LCM of 7398 and 7405.

LCM(7398,7405) = 2¹ × 3³ × 137¹ × 5¹ × 1481¹
LCM(7398,7405) = 54782190