What is the Least Common Multiple of 17820 and 17836?

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 17820 and 17836 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17820 and 17836, than apply into the LCM equation.

GCF(17820,17836) = 4
LCM(17820,17836) = ( 17820 × 17836) / 4
LCM(17820,17836) = 317837520 / 4
LCM(17820,17836) = 79459380

Least Common Multiple (LCM) of 17820 and 17836 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17820 and 17836. First we will calculate the prime factors of 17820 and 17836.

Prime Factorization of 17820

Prime Factorization of 17836

Now multiplying the highest exponent prime factors to calculate the LCM of 17820 and 17836.

LCM(17820,17836) = 2² × 3⁴ × 5¹ × 11¹ × 7³ × 13¹
LCM(17820,17836) = 79459380