What is the Least Common Multiple of 8172 and 8181?

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 8172 and 8181 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8172 and 8181, than apply into the LCM equation.

GCF(8172,8181) = 9
LCM(8172,8181) = ( 8172 × 8181) / 9
LCM(8172,8181) = 66855132 / 9
LCM(8172,8181) = 7428348

Least Common Multiple (LCM) of 8172 and 8181 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8172 and 8181. First we will calculate the prime factors of 8172 and 8181.

Prime Factorization of 8172

Prime Factorization of 8181

Now multiplying the highest exponent prime factors to calculate the LCM of 8172 and 8181.

LCM(8172,8181) = 2² × 3⁴ × 227¹ × 101¹
LCM(8172,8181) = 7428348