What is the Least Common Multiple of 7405 and 7423?

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 7405 and 7423 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7405 and 7423, than apply into the LCM equation.

GCF(7405,7423) = 1
LCM(7405,7423) = ( 7405 × 7423) / 1
LCM(7405,7423) = 54967315 / 1
LCM(7405,7423) = 54967315

Least Common Multiple (LCM) of 7405 and 7423 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7405 and 7423. First we will calculate the prime factors of 7405 and 7423.

Prime Factorization of 7405

Prime Factorization of 7423

Now multiplying the highest exponent prime factors to calculate the LCM of 7405 and 7423.

LCM(7405,7423) = 5¹ × 1481¹ × 13¹ × 571¹
LCM(7405,7423) = 54967315