What is the Least Common Multiple of 6428 and 6443?

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 6428 and 6443 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6428 and 6443, than apply into the LCM equation.

GCF(6428,6443) = 1
LCM(6428,6443) = ( 6428 × 6443) / 1
LCM(6428,6443) = 41415604 / 1
LCM(6428,6443) = 41415604

Least Common Multiple (LCM) of 6428 and 6443 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6428 and 6443. First we will calculate the prime factors of 6428 and 6443.

Prime Factorization of 6428

Prime Factorization of 6443

Now multiplying the highest exponent prime factors to calculate the LCM of 6428 and 6443.

LCM(6428,6443) = 2² × 1607¹ × 17¹ × 379¹
LCM(6428,6443) = 41415604