What is the Least Common Multiple of 13785 and 13803?

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 13785 and 13803 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13785 and 13803, than apply into the LCM equation.

GCF(13785,13803) = 3
LCM(13785,13803) = ( 13785 × 13803) / 3
LCM(13785,13803) = 190274355 / 3
LCM(13785,13803) = 63424785

Least Common Multiple (LCM) of 13785 and 13803 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13785 and 13803. First we will calculate the prime factors of 13785 and 13803.

Prime Factorization of 13785

Prime Factorization of 13803

Now multiplying the highest exponent prime factors to calculate the LCM of 13785 and 13803.

LCM(13785,13803) = 3¹ × 5¹ × 919¹ × 43¹ × 107¹
LCM(13785,13803) = 63424785