What is the Least Common Multiple of 12320 and 12328?

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 12320 and 12328 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12320 and 12328, than apply into the LCM equation.

GCF(12320,12328) = 8
LCM(12320,12328) = ( 12320 × 12328) / 8
LCM(12320,12328) = 151880960 / 8
LCM(12320,12328) = 18985120

Least Common Multiple (LCM) of 12320 and 12328 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12320 and 12328. First we will calculate the prime factors of 12320 and 12328.

Prime Factorization of 12320

Prime Factorization of 12328

Now multiplying the highest exponent prime factors to calculate the LCM of 12320 and 12328.

LCM(12320,12328) = 2⁵ × 5¹ × 7¹ × 11¹ × 23¹ × 67¹
LCM(12320,12328) = 18985120