What is the Least Common Multiple of 3948 and 3958?

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 3948 and 3958 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3948 and 3958, than apply into the LCM equation.

GCF(3948,3958) = 2
LCM(3948,3958) = ( 3948 × 3958) / 2
LCM(3948,3958) = 15626184 / 2
LCM(3948,3958) = 7813092

Least Common Multiple (LCM) of 3948 and 3958 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3948 and 3958. First we will calculate the prime factors of 3948 and 3958.

Prime Factorization of 3948

Prime Factorization of 3958

Now multiplying the highest exponent prime factors to calculate the LCM of 3948 and 3958.

LCM(3948,3958) = 2² × 3¹ × 7¹ × 47¹ × 1979¹
LCM(3948,3958) = 7813092