What is the Least Common Multiple of 7007 and 7021?

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 7007 and 7021 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7007 and 7021, than apply into the LCM equation.

GCF(7007,7021) = 7
LCM(7007,7021) = ( 7007 × 7021) / 7
LCM(7007,7021) = 49196147 / 7
LCM(7007,7021) = 7028021

Least Common Multiple (LCM) of 7007 and 7021 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7007 and 7021. First we will calculate the prime factors of 7007 and 7021.

Prime Factorization of 7007

Prime Factorization of 7021

Now multiplying the highest exponent prime factors to calculate the LCM of 7007 and 7021.

LCM(7007,7021) = 7² × 11¹ × 13¹ × 17¹ × 59¹
LCM(7007,7021) = 7028021