What is the Least Common Multiple of 13685 and 13691?

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 13685 and 13691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13685 and 13691, than apply into the LCM equation.

GCF(13685,13691) = 1
LCM(13685,13691) = ( 13685 × 13691) / 1
LCM(13685,13691) = 187361335 / 1
LCM(13685,13691) = 187361335

Least Common Multiple (LCM) of 13685 and 13691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13685 and 13691. First we will calculate the prime factors of 13685 and 13691.

Prime Factorization of 13685

Prime Factorization of 13691

Now multiplying the highest exponent prime factors to calculate the LCM of 13685 and 13691.

LCM(13685,13691) = 5¹ × 7¹ × 17¹ × 23¹ × 13691¹
LCM(13685,13691) = 187361335