What is the Least Common Multiple of 7309 and 7321?

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 7309 and 7321 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7309 and 7321, than apply into the LCM equation.

GCF(7309,7321) = 1
LCM(7309,7321) = ( 7309 × 7321) / 1
LCM(7309,7321) = 53509189 / 1
LCM(7309,7321) = 53509189

Least Common Multiple (LCM) of 7309 and 7321 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7309 and 7321. First we will calculate the prime factors of 7309 and 7321.

Prime Factorization of 7309

Prime Factorization of 7321

Now multiplying the highest exponent prime factors to calculate the LCM of 7309 and 7321.

LCM(7309,7321) = 7309¹ × 7321¹
LCM(7309,7321) = 53509189