What is the Least Common Multiple of 8428 and 8443?

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 8428 and 8443 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8428 and 8443, than apply into the LCM equation.

GCF(8428,8443) = 1
LCM(8428,8443) = ( 8428 × 8443) / 1
LCM(8428,8443) = 71157604 / 1
LCM(8428,8443) = 71157604

Least Common Multiple (LCM) of 8428 and 8443 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8428 and 8443. First we will calculate the prime factors of 8428 and 8443.

Prime Factorization of 8428

Prime Factorization of 8443

Now multiplying the highest exponent prime factors to calculate the LCM of 8428 and 8443.

LCM(8428,8443) = 2² × 7² × 43¹ × 8443¹
LCM(8428,8443) = 71157604