What is the Least Common Multiple of 9989 and 9993?

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 9989 and 9993 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9989 and 9993, than apply into the LCM equation.

GCF(9989,9993) = 1
LCM(9989,9993) = ( 9989 × 9993) / 1
LCM(9989,9993) = 99820077 / 1
LCM(9989,9993) = 99820077

Least Common Multiple (LCM) of 9989 and 9993 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9989 and 9993. First we will calculate the prime factors of 9989 and 9993.

Prime Factorization of 9989

Prime Factorization of 9993

Now multiplying the highest exponent prime factors to calculate the LCM of 9989 and 9993.

LCM(9989,9993) = 7¹ × 1427¹ × 3¹ × 3331¹
LCM(9989,9993) = 99820077