What is the Least Common Multiple of 42015 and 42031?

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 42015 and 42031 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42015 and 42031, than apply into the LCM equation.

GCF(42015,42031) = 1
LCM(42015,42031) = ( 42015 × 42031) / 1
LCM(42015,42031) = 1765932465 / 1
LCM(42015,42031) = 1765932465

Least Common Multiple (LCM) of 42015 and 42031 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42015 and 42031. First we will calculate the prime factors of 42015 and 42031.

Prime Factorization of 42015

Prime Factorization of 42031

Now multiplying the highest exponent prime factors to calculate the LCM of 42015 and 42031.

LCM(42015,42031) = 3¹ × 5¹ × 2801¹ × 11¹ × 3821¹
LCM(42015,42031) = 1765932465