What is the Least Common Multiple of 11761 and 11780?

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 11761 and 11780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11761 and 11780, than apply into the LCM equation.

GCF(11761,11780) = 19
LCM(11761,11780) = ( 11761 × 11780) / 19
LCM(11761,11780) = 138544580 / 19
LCM(11761,11780) = 7291820

Least Common Multiple (LCM) of 11761 and 11780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11761 and 11780. First we will calculate the prime factors of 11761 and 11780.

Prime Factorization of 11761

Prime Factorization of 11780

Now multiplying the highest exponent prime factors to calculate the LCM of 11761 and 11780.

LCM(11761,11780) = 19¹ × 619¹ × 2² × 5¹ × 31¹
LCM(11761,11780) = 7291820