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What is the Least Common Multiple of 25905 and 25921?

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 25905 and 25921 is 671483505.

LCM(25905,25921) = 671483505

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Least Common Multiple of 25905 and 25921 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25905 and 25921, than apply into the LCM equation.

GCF(25905,25921) = 1
LCM(25905,25921) = ( 25905 × 25921) / 1
LCM(25905,25921) = 671483505 / 1
LCM(25905,25921) = 671483505

Least Common Multiple (LCM) of 25905 and 25921 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25905 and 25921. First we will calculate the prime factors of 25905 and 25921.

Prime Factorization of 25905

Prime factors of 25905 are 3, 5, 11, 157. Prime factorization of 25905 in exponential form is:

25905 = 31 × 51 × 111 × 1571

Prime Factorization of 25921

Prime factors of 25921 are 7, 23. Prime factorization of 25921 in exponential form is:

25921 = 72 × 232

Now multiplying the highest exponent prime factors to calculate the LCM of 25905 and 25921.

LCM(25905,25921) = 31 × 51 × 111 × 1571 × 72 × 232
LCM(25905,25921) = 671483505