What is the Least Common Multiple of 19490 and 19494?

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 19490 and 19494 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19490 and 19494, than apply into the LCM equation.

GCF(19490,19494) = 2
LCM(19490,19494) = ( 19490 × 19494) / 2
LCM(19490,19494) = 379938060 / 2
LCM(19490,19494) = 189969030

Least Common Multiple (LCM) of 19490 and 19494 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19490 and 19494. First we will calculate the prime factors of 19490 and 19494.

Prime Factorization of 19490

Prime Factorization of 19494

Now multiplying the highest exponent prime factors to calculate the LCM of 19490 and 19494.

LCM(19490,19494) = 2¹ × 5¹ × 1949¹ × 3³ × 19²
LCM(19490,19494) = 189969030