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What is the Least Common Multiple of 6481 and 6485?

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 6481 and 6485 is 42029285.

LCM(6481,6485) = 42029285

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Least Common Multiple of 6481 and 6485 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6481 and 6485, than apply into the LCM equation.

GCF(6481,6485) = 1
LCM(6481,6485) = ( 6481 × 6485) / 1
LCM(6481,6485) = 42029285 / 1
LCM(6481,6485) = 42029285

Least Common Multiple (LCM) of 6481 and 6485 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6481 and 6485. First we will calculate the prime factors of 6481 and 6485.

Prime Factorization of 6481

Prime factors of 6481 are 6481. Prime factorization of 6481 in exponential form is:

6481 = 64811

Prime Factorization of 6485

Prime factors of 6485 are 5, 1297. Prime factorization of 6485 in exponential form is:

6485 = 51 × 12971

Now multiplying the highest exponent prime factors to calculate the LCM of 6481 and 6485.

LCM(6481,6485) = 64811 × 51 × 12971
LCM(6481,6485) = 42029285