What is the Least Common Multiple of 11945 and 11955?

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 11945 and 11955 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11945 and 11955, than apply into the LCM equation.

GCF(11945,11955) = 5
LCM(11945,11955) = ( 11945 × 11955) / 5
LCM(11945,11955) = 142802475 / 5
LCM(11945,11955) = 28560495

Least Common Multiple (LCM) of 11945 and 11955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11945 and 11955. First we will calculate the prime factors of 11945 and 11955.

Prime Factorization of 11945

Prime Factorization of 11955

Now multiplying the highest exponent prime factors to calculate the LCM of 11945 and 11955.

LCM(11945,11955) = 5¹ × 2389¹ × 3¹ × 797¹
LCM(11945,11955) = 28560495