What is the Least Common Multiple of 8456 and 8471?

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 8456 and 8471 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8456 and 8471, than apply into the LCM equation.

GCF(8456,8471) = 1
LCM(8456,8471) = ( 8456 × 8471) / 1
LCM(8456,8471) = 71630776 / 1
LCM(8456,8471) = 71630776

Least Common Multiple (LCM) of 8456 and 8471 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8456 and 8471. First we will calculate the prime factors of 8456 and 8471.

Prime Factorization of 8456

Prime Factorization of 8471

Now multiplying the highest exponent prime factors to calculate the LCM of 8456 and 8471.

LCM(8456,8471) = 2³ × 7¹ × 151¹ × 43¹ × 197¹
LCM(8456,8471) = 71630776