What is the Least Common Multiple of 797 and 808?

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 797 and 808 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 797 and 808, than apply into the LCM equation.

GCF(797,808) = 1
LCM(797,808) = ( 797 × 808) / 1
LCM(797,808) = 643976 / 1
LCM(797,808) = 643976

Least Common Multiple (LCM) of 797 and 808 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 797 and 808. First we will calculate the prime factors of 797 and 808.

Prime Factorization of 797

Prime Factorization of 808

Now multiplying the highest exponent prime factors to calculate the LCM of 797 and 808.

LCM(797,808) = 797¹ × 2³ × 101¹
LCM(797,808) = 643976