What is the Least Common Multiple of 11945 and 11965?

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 11965 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 11965, than apply into the LCM equation.

GCF(11945,11965) = 5
LCM(11945,11965) = ( 11945 × 11965) / 5
LCM(11945,11965) = 142921925 / 5
LCM(11945,11965) = 28584385

Least Common Multiple (LCM) of 11945 and 11965 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11945 and 11965. First we will calculate the prime factors of 11945 and 11965.

Prime Factorization of 11945

Prime Factorization of 11965

Now multiplying the highest exponent prime factors to calculate the LCM of 11945 and 11965.

LCM(11945,11965) = 5¹ × 2389¹ × 2393¹
LCM(11945,11965) = 28584385