What is the Least Common Multiple of 42646 and 42662?

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 42646 and 42662 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42646 and 42662, than apply into the LCM equation.

GCF(42646,42662) = 2
LCM(42646,42662) = ( 42646 × 42662) / 2
LCM(42646,42662) = 1819363652 / 2
LCM(42646,42662) = 909681826

Least Common Multiple (LCM) of 42646 and 42662 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42646 and 42662. First we will calculate the prime factors of 42646 and 42662.

Prime Factorization of 42646

Prime Factorization of 42662

Now multiplying the highest exponent prime factors to calculate the LCM of 42646 and 42662.

LCM(42646,42662) = 2¹ × 21323¹ × 83¹ × 257¹
LCM(42646,42662) = 909681826