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- W2482023257 abstract "A perfect number is a number which is the sum of all its divisors except itself, the smallest such number being 6. By results due to Euclid and Euler, all the even perfect numbers are of the form 2 P-1 (2 p - 1) where p and 2 p - 1 are primes; the latter one is called a Mersenne prime. Whether there are infinitely many Mersenne primes is a notoriously difficult problem, as is the problem of whether there is an odd perfect number." @default.
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- W2482023257 date "2009-11-01" @default.
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- W2482023257 title "Pseudoperfect numbers with no small prime divisors" @default.
- W2482023257 cites W2014413688 @default.
- W2482023257 doi "https://doi.org/10.1017/s0025557200185146" @default.
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