What is the Least Common Multiple of 42159 and 42173?

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 42159 and 42173 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42159 and 42173, than apply into the LCM equation.

GCF(42159,42173) = 1
LCM(42159,42173) = ( 42159 × 42173) / 1
LCM(42159,42173) = 1777971507 / 1
LCM(42159,42173) = 1777971507

Least Common Multiple (LCM) of 42159 and 42173 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42159 and 42173. First we will calculate the prime factors of 42159 and 42173.

Prime Factorization of 42159

Prime Factorization of 42173

Now multiplying the highest exponent prime factors to calculate the LCM of 42159 and 42173.

LCM(42159,42173) = 3¹ × 13¹ × 23¹ × 47¹ × 181¹ × 233¹
LCM(42159,42173) = 1777971507