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What is the Least Common Multiple of 81477 and 81485?

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 81477 and 81485 is 6639153345.

LCM(81477,81485) = 6639153345

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Least Common Multiple of 81477 and 81485 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81477 and 81485, than apply into the LCM equation.

GCF(81477,81485) = 1
LCM(81477,81485) = ( 81477 × 81485) / 1
LCM(81477,81485) = 6639153345 / 1
LCM(81477,81485) = 6639153345

Least Common Multiple (LCM) of 81477 and 81485 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81477 and 81485. First we will calculate the prime factors of 81477 and 81485.

Prime Factorization of 81477

Prime factors of 81477 are 3, 11, 823. Prime factorization of 81477 in exponential form is:

81477 = 32 × 111 × 8231

Prime Factorization of 81485

Prime factors of 81485 are 5, 43, 379. Prime factorization of 81485 in exponential form is:

81485 = 51 × 431 × 3791

Now multiplying the highest exponent prime factors to calculate the LCM of 81477 and 81485.

LCM(81477,81485) = 32 × 111 × 8231 × 51 × 431 × 3791
LCM(81477,81485) = 6639153345