Perfect numbers: Difference between revisions
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CPU time 118.039 seconds. Backtracks: 0</pre>
===Using list of the
Now let's cheat a little. At https://en.wikipedia.org/wiki/Perfect_number there is a list of the first 48 primes that generates perfect numbers according to the formula 2^(p-1)*(2^p-1) for prime p.
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