What is the Least Common Multiple of 71021 and 71028?

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 71021 and 71028 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71021 and 71028, than apply into the LCM equation.

GCF(71021,71028) = 1
LCM(71021,71028) = ( 71021 × 71028) / 1
LCM(71021,71028) = 5044479588 / 1
LCM(71021,71028) = 5044479588

Least Common Multiple (LCM) of 71021 and 71028 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71021 and 71028. First we will calculate the prime factors of 71021 and 71028.

Prime Factorization of 71021

Prime Factorization of 71028

Now multiplying the highest exponent prime factors to calculate the LCM of 71021 and 71028.

LCM(71021,71028) = 29¹ × 31¹ × 79¹ × 2² × 3² × 1973¹
LCM(71021,71028) = 5044479588