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What is the Least Common Multiple of 81497 and 81516?

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 81497 and 81516 is 6643309452.

LCM(81497,81516) = 6643309452

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Least Common Multiple of 81497 and 81516 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81497 and 81516, than apply into the LCM equation.

GCF(81497,81516) = 1
LCM(81497,81516) = ( 81497 × 81516) / 1
LCM(81497,81516) = 6643309452 / 1
LCM(81497,81516) = 6643309452

Least Common Multiple (LCM) of 81497 and 81516 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81497 and 81516. First we will calculate the prime factors of 81497 and 81516.

Prime Factorization of 81497

Prime factors of 81497 are 13, 6269. Prime factorization of 81497 in exponential form is:

81497 = 131 × 62691

Prime Factorization of 81516

Prime factors of 81516 are 2, 3, 6793. Prime factorization of 81516 in exponential form is:

81516 = 22 × 31 × 67931

Now multiplying the highest exponent prime factors to calculate the LCM of 81497 and 81516.

LCM(81497,81516) = 131 × 62691 × 22 × 31 × 67931
LCM(81497,81516) = 6643309452