What is the Least Common Multiple of 13945 and 13957?

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 13945 and 13957 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13945 and 13957, than apply into the LCM equation.

GCF(13945,13957) = 1
LCM(13945,13957) = ( 13945 × 13957) / 1
LCM(13945,13957) = 194630365 / 1
LCM(13945,13957) = 194630365

Least Common Multiple (LCM) of 13945 and 13957 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13945 and 13957. First we will calculate the prime factors of 13945 and 13957.

Prime Factorization of 13945

Prime Factorization of 13957

Now multiplying the highest exponent prime factors to calculate the LCM of 13945 and 13957.

LCM(13945,13957) = 5¹ × 2789¹ × 17¹ × 821¹
LCM(13945,13957) = 194630365