What is the Least Common Multiple of 25140 and 25155?

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 25140 and 25155 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25140 and 25155, than apply into the LCM equation.

GCF(25140,25155) = 15
LCM(25140,25155) = ( 25140 × 25155) / 15
LCM(25140,25155) = 632396700 / 15
LCM(25140,25155) = 42159780

Least Common Multiple (LCM) of 25140 and 25155 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25140 and 25155. First we will calculate the prime factors of 25140 and 25155.

Prime Factorization of 25140

Prime Factorization of 25155

Now multiplying the highest exponent prime factors to calculate the LCM of 25140 and 25155.

LCM(25140,25155) = 2² × 3² × 5¹ × 419¹ × 13¹ × 43¹
LCM(25140,25155) = 42159780