What is the Least Common Multiple of 7680 and 7696?

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 7680 and 7696 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7680 and 7696, than apply into the LCM equation.

GCF(7680,7696) = 16
LCM(7680,7696) = ( 7680 × 7696) / 16
LCM(7680,7696) = 59105280 / 16
LCM(7680,7696) = 3694080

Least Common Multiple (LCM) of 7680 and 7696 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7680 and 7696. First we will calculate the prime factors of 7680 and 7696.

Prime Factorization of 7680

Prime Factorization of 7696

Now multiplying the highest exponent prime factors to calculate the LCM of 7680 and 7696.

LCM(7680,7696) = 2⁹ × 3¹ × 5¹ × 13¹ × 37¹
LCM(7680,7696) = 3694080