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What is the Least Common Multiple of 25140 and 25160?

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 (LCM) of 25140 and 25160 is 31626120.

LCM(25140,25160) = 31626120

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Least Common Multiple of 25140 and 25160 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 25160, than apply into the LCM equation.

GCF(25140,25160) = 20
LCM(25140,25160) = ( 25140 × 25160) / 20
LCM(25140,25160) = 632522400 / 20
LCM(25140,25160) = 31626120

Least Common Multiple (LCM) of 25140 and 25160 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25140 and 25160. First we will calculate the prime factors of 25140 and 25160.

Prime Factorization of 25140

Prime factors of 25140 are 2, 3, 5, 419. Prime factorization of 25140 in exponential form is:

25140 = 22 × 31 × 51 × 4191

Prime Factorization of 25160

Prime factors of 25160 are 2, 5, 17, 37. Prime factorization of 25160 in exponential form is:

25160 = 23 × 51 × 171 × 371

Now multiplying the highest exponent prime factors to calculate the LCM of 25140 and 25160.

LCM(25140,25160) = 23 × 31 × 51 × 4191 × 171 × 371
LCM(25140,25160) = 31626120