What is the Least Common Multiple of 13991 and 14003?

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 14003 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 14003, than apply into the LCM equation.

GCF(13991,14003) = 1
LCM(13991,14003) = ( 13991 × 14003) / 1
LCM(13991,14003) = 195915973 / 1
LCM(13991,14003) = 195915973

Least Common Multiple (LCM) of 13991 and 14003 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13991 and 14003. First we will calculate the prime factors of 13991 and 14003.

Prime Factorization of 13991

Prime Factorization of 14003

Now multiplying the highest exponent prime factors to calculate the LCM of 13991 and 14003.

LCM(13991,14003) = 17¹ × 823¹ × 11¹ × 19¹ × 67¹
LCM(13991,14003) = 195915973