What is the Least Common Multiple of 1791 and 1803?

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 1791 and 1803 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1791 and 1803, than apply into the LCM equation.

GCF(1791,1803) = 3
LCM(1791,1803) = ( 1791 × 1803) / 3
LCM(1791,1803) = 3229173 / 3
LCM(1791,1803) = 1076391

Least Common Multiple (LCM) of 1791 and 1803 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1791 and 1803. First we will calculate the prime factors of 1791 and 1803.

Prime Factorization of 1791

Prime Factorization of 1803

Now multiplying the highest exponent prime factors to calculate the LCM of 1791 and 1803.

LCM(1791,1803) = 3² × 199¹ × 601¹
LCM(1791,1803) = 1076391