What is the Least Common Multiple of 42889 and 42902?

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 42889 and 42902 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42889 and 42902, than apply into the LCM equation.

GCF(42889,42902) = 1
LCM(42889,42902) = ( 42889 × 42902) / 1
LCM(42889,42902) = 1840023878 / 1
LCM(42889,42902) = 1840023878

Least Common Multiple (LCM) of 42889 and 42902 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42889 and 42902. First we will calculate the prime factors of 42889 and 42902.

Prime Factorization of 42889

Prime Factorization of 42902

Now multiplying the highest exponent prime factors to calculate the LCM of 42889 and 42902.

LCM(42889,42902) = 7¹ × 11¹ × 557¹ × 2¹ × 19¹ × 1129¹
LCM(42889,42902) = 1840023878