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What is the Least Common Multiple of 2547 and 2561?

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 2547 and 2561 is 6522867.

LCM(2547,2561) = 6522867

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Least Common Multiple of 2547 and 2561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2547 and 2561, than apply into the LCM equation.

GCF(2547,2561) = 1
LCM(2547,2561) = ( 2547 × 2561) / 1
LCM(2547,2561) = 6522867 / 1
LCM(2547,2561) = 6522867

Least Common Multiple (LCM) of 2547 and 2561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2547 and 2561. First we will calculate the prime factors of 2547 and 2561.

Prime Factorization of 2547

Prime factors of 2547 are 3, 283. Prime factorization of 2547 in exponential form is:

2547 = 32 × 2831

Prime Factorization of 2561

Prime factors of 2561 are 13, 197. Prime factorization of 2561 in exponential form is:

2561 = 131 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 2547 and 2561.

LCM(2547,2561) = 32 × 2831 × 131 × 1971
LCM(2547,2561) = 6522867