What is the Least Common Multiple of 7021 and 7028?

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 7021 and 7028 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7021 and 7028, than apply into the LCM equation.

GCF(7021,7028) = 7
LCM(7021,7028) = ( 7021 × 7028) / 7
LCM(7021,7028) = 49343588 / 7
LCM(7021,7028) = 7049084

Least Common Multiple (LCM) of 7021 and 7028 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7021 and 7028. First we will calculate the prime factors of 7021 and 7028.

Prime Factorization of 7021

Prime Factorization of 7028

Now multiplying the highest exponent prime factors to calculate the LCM of 7021 and 7028.

LCM(7021,7028) = 7¹ × 17¹ × 59¹ × 2² × 251¹
LCM(7021,7028) = 7049084