What is the Least Common Multiple of 3969 and 3988?

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 3969 and 3988 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3969 and 3988, than apply into the LCM equation.

GCF(3969,3988) = 1
LCM(3969,3988) = ( 3969 × 3988) / 1
LCM(3969,3988) = 15828372 / 1
LCM(3969,3988) = 15828372

Least Common Multiple (LCM) of 3969 and 3988 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3969 and 3988. First we will calculate the prime factors of 3969 and 3988.

Prime Factorization of 3969

Prime Factorization of 3988

Now multiplying the highest exponent prime factors to calculate the LCM of 3969 and 3988.

LCM(3969,3988) = 3⁴ × 7² × 2² × 997¹
LCM(3969,3988) = 15828372