What is the Least Common Multiple of 40470 and 40474?

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 40470 and 40474 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40470 and 40474, than apply into the LCM equation.

GCF(40470,40474) = 2
LCM(40470,40474) = ( 40470 × 40474) / 2
LCM(40470,40474) = 1637982780 / 2
LCM(40470,40474) = 818991390

Least Common Multiple (LCM) of 40470 and 40474 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40470 and 40474. First we will calculate the prime factors of 40470 and 40474.

Prime Factorization of 40470

Prime Factorization of 40474

Now multiplying the highest exponent prime factors to calculate the LCM of 40470 and 40474.

LCM(40470,40474) = 2¹ × 3¹ × 5¹ × 19¹ × 71¹ × 7³ × 59¹
LCM(40470,40474) = 818991390