What is the Least Common Multiple of 42073 and 42091?

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 42073 and 42091 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42073 and 42091, than apply into the LCM equation.

GCF(42073,42091) = 1
LCM(42073,42091) = ( 42073 × 42091) / 1
LCM(42073,42091) = 1770894643 / 1
LCM(42073,42091) = 1770894643

Least Common Multiple (LCM) of 42073 and 42091 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42073 and 42091. First we will calculate the prime factors of 42073 and 42091.

Prime Factorization of 42073

Prime Factorization of 42091

Now multiplying the highest exponent prime factors to calculate the LCM of 42073 and 42091.

LCM(42073,42091) = 42073¹ × 7² × 859¹
LCM(42073,42091) = 1770894643