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What is the Least Common Multiple of 25380 and 25395?

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 25380 and 25395 is 42968340.

LCM(25380,25395) = 42968340

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Least Common Multiple of 25380 and 25395 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25380 and 25395, than apply into the LCM equation.

GCF(25380,25395) = 15
LCM(25380,25395) = ( 25380 × 25395) / 15
LCM(25380,25395) = 644525100 / 15
LCM(25380,25395) = 42968340

Least Common Multiple (LCM) of 25380 and 25395 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25380 and 25395. First we will calculate the prime factors of 25380 and 25395.

Prime Factorization of 25380

Prime factors of 25380 are 2, 3, 5, 47. Prime factorization of 25380 in exponential form is:

25380 = 22 × 33 × 51 × 471

Prime Factorization of 25395

Prime factors of 25395 are 3, 5, 1693. Prime factorization of 25395 in exponential form is:

25395 = 31 × 51 × 16931

Now multiplying the highest exponent prime factors to calculate the LCM of 25380 and 25395.

LCM(25380,25395) = 22 × 33 × 51 × 471 × 16931
LCM(25380,25395) = 42968340