What is the Least Common Multiple of 19406 and 19422?

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 19406 and 19422 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19406 and 19422, than apply into the LCM equation.

GCF(19406,19422) = 2
LCM(19406,19422) = ( 19406 × 19422) / 2
LCM(19406,19422) = 376903332 / 2
LCM(19406,19422) = 188451666

Least Common Multiple (LCM) of 19406 and 19422 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19406 and 19422. First we will calculate the prime factors of 19406 and 19422.

Prime Factorization of 19406

Prime Factorization of 19422

Now multiplying the highest exponent prime factors to calculate the LCM of 19406 and 19422.

LCM(19406,19422) = 2¹ × 31¹ × 313¹ × 3² × 13¹ × 83¹
LCM(19406,19422) = 188451666