What is the Least Common Multiple of 5205 and 5220?

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 5205 and 5220 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5205 and 5220, than apply into the LCM equation.

GCF(5205,5220) = 15
LCM(5205,5220) = ( 5205 × 5220) / 15
LCM(5205,5220) = 27170100 / 15
LCM(5205,5220) = 1811340

Least Common Multiple (LCM) of 5205 and 5220 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5205 and 5220. First we will calculate the prime factors of 5205 and 5220.

Prime Factorization of 5205

Prime Factorization of 5220

Now multiplying the highest exponent prime factors to calculate the LCM of 5205 and 5220.

LCM(5205,5220) = 3² × 5¹ × 347¹ × 2² × 29¹
LCM(5205,5220) = 1811340