On Certain Properties of Prime Numbers.
On Certain Properties of Prime Numbers.
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DOI:
10.1098/rspl.1843.0113
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通讯作者:
F. Pollock
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作者:
F. Pollock
The author of this paper, after noticing Wilson’s Theorem, (published by Waring about the year 1770, without any proof), which theorem is that, if A be a prime number, 1. 2. 3. . . . (A —1)+1 is divisible by A ; refers to Lagrange’s and Euler’s demonstrations, and mentions Gauss’s extension of the theorem, to any number, not prime; provided that instead of 1, 2, 3, &c. (A —1), those numbers only be taken which are prime to A, and 1 be either added or subtracted. This theorem was published by Gauss without a proof in 1801, with a rule as to the cases in which 1 is to be added or subtracted, the correctness of which is questioned by the author, who proceeds to propound the following theorem, which he had previously, for distinctness, divided into three. If any number, prime or not, be taken, and the numbers prime to it, and less than one half of it be ascertained, and those be rejected whose squares ±1 are equal to the prime number, or some multiple of it (which may be more than one), then the product of the remaining primes (if any), ±1 shall be divisible by the prime number.