What is the Least Common Multiple of 7320 and 7340?

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 7320 and 7340 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7320 and 7340, than apply into the LCM equation.

GCF(7320,7340) = 20
LCM(7320,7340) = ( 7320 × 7340) / 20
LCM(7320,7340) = 53728800 / 20
LCM(7320,7340) = 2686440

Least Common Multiple (LCM) of 7320 and 7340 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7320 and 7340. First we will calculate the prime factors of 7320 and 7340.

Prime Factorization of 7320

Prime Factorization of 7340

Now multiplying the highest exponent prime factors to calculate the LCM of 7320 and 7340.

LCM(7320,7340) = 2³ × 3¹ × 5¹ × 61¹ × 367¹
LCM(7320,7340) = 2686440