What is the Least Common Multiple of 19842 and 19862?

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 19842 and 19862 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19842 and 19862, than apply into the LCM equation.

GCF(19842,19862) = 2
LCM(19842,19862) = ( 19842 × 19862) / 2
LCM(19842,19862) = 394101804 / 2
LCM(19842,19862) = 197050902

Least Common Multiple (LCM) of 19842 and 19862 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19842 and 19862. First we will calculate the prime factors of 19842 and 19862.

Prime Factorization of 19842

Prime Factorization of 19862

Now multiplying the highest exponent prime factors to calculate the LCM of 19842 and 19862.

LCM(19842,19862) = 2¹ × 3¹ × 3307¹ × 9931¹
LCM(19842,19862) = 197050902