What is the Least Common Multiple of 7720 and 7736?

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 7720 and 7736 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7720 and 7736, than apply into the LCM equation.

GCF(7720,7736) = 8
LCM(7720,7736) = ( 7720 × 7736) / 8
LCM(7720,7736) = 59721920 / 8
LCM(7720,7736) = 7465240

Least Common Multiple (LCM) of 7720 and 7736 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7720 and 7736. First we will calculate the prime factors of 7720 and 7736.

Prime Factorization of 7720

Prime Factorization of 7736

Now multiplying the highest exponent prime factors to calculate the LCM of 7720 and 7736.

LCM(7720,7736) = 2³ × 5¹ × 193¹ × 967¹
LCM(7720,7736) = 7465240