What is the Least Common Multiple of 25515 and 25520?

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 25515 and 25520 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25515 and 25520, than apply into the LCM equation.

GCF(25515,25520) = 5
LCM(25515,25520) = ( 25515 × 25520) / 5
LCM(25515,25520) = 651142800 / 5
LCM(25515,25520) = 130228560

Least Common Multiple (LCM) of 25515 and 25520 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25515 and 25520. First we will calculate the prime factors of 25515 and 25520.

Prime Factorization of 25515

Prime Factorization of 25520

Now multiplying the highest exponent prime factors to calculate the LCM of 25515 and 25520.

LCM(25515,25520) = 3⁶ × 5¹ × 7¹ × 2⁴ × 11¹ × 29¹
LCM(25515,25520) = 130228560