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What is the Least Common Multiple of 81466 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 81466 and 81485 is 6638257010.

LCM(81466,81485) = 6638257010

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Least Common Multiple of 81466 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 81466 and 81485, than apply into the LCM equation.

GCF(81466,81485) = 1
LCM(81466,81485) = ( 81466 × 81485) / 1
LCM(81466,81485) = 6638257010 / 1
LCM(81466,81485) = 6638257010

Least Common Multiple (LCM) of 81466 and 81485 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81466 and 81485. First we will calculate the prime factors of 81466 and 81485.

Prime Factorization of 81466

Prime factors of 81466 are 2, 7, 11, 23. Prime factorization of 81466 in exponential form is:

81466 = 21 × 71 × 111 × 232

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 81466 and 81485.

LCM(81466,81485) = 21 × 71 × 111 × 232 × 51 × 431 × 3791
LCM(81466,81485) = 6638257010