What is the Least Common Multiple of 13991 and 14009?

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 13991 and 14009 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13991 and 14009, than apply into the LCM equation.

GCF(13991,14009) = 1
LCM(13991,14009) = ( 13991 × 14009) / 1
LCM(13991,14009) = 195999919 / 1
LCM(13991,14009) = 195999919

Least Common Multiple (LCM) of 13991 and 14009 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13991 and 14009. First we will calculate the prime factors of 13991 and 14009.

Prime Factorization of 13991

Prime Factorization of 14009

Now multiplying the highest exponent prime factors to calculate the LCM of 13991 and 14009.

LCM(13991,14009) = 17¹ × 823¹ × 14009¹
LCM(13991,14009) = 195999919