What is the Least Common Multiple of 7003 and 7007?

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 7003 and 7007 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7003 and 7007, than apply into the LCM equation.

GCF(7003,7007) = 1
LCM(7003,7007) = ( 7003 × 7007) / 1
LCM(7003,7007) = 49070021 / 1
LCM(7003,7007) = 49070021

Least Common Multiple (LCM) of 7003 and 7007 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7003 and 7007. First we will calculate the prime factors of 7003 and 7007.

Prime Factorization of 7003

Prime Factorization of 7007

Now multiplying the highest exponent prime factors to calculate the LCM of 7003 and 7007.

LCM(7003,7007) = 47¹ × 149¹ × 7² × 11¹ × 13¹
LCM(7003,7007) = 49070021