What is the Least Common Multiple of 3960 and 3976?

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 3960 and 3976 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3960 and 3976, than apply into the LCM equation.

GCF(3960,3976) = 8
LCM(3960,3976) = ( 3960 × 3976) / 8
LCM(3960,3976) = 15744960 / 8
LCM(3960,3976) = 1968120

Least Common Multiple (LCM) of 3960 and 3976 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3960 and 3976. First we will calculate the prime factors of 3960 and 3976.

Prime Factorization of 3960

Prime Factorization of 3976

Now multiplying the highest exponent prime factors to calculate the LCM of 3960 and 3976.

LCM(3960,3976) = 2³ × 3² × 5¹ × 11¹ × 7¹ × 71¹
LCM(3960,3976) = 1968120