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Is there a proof which shows that for all primes p, n^p-n is divisible by p?
I've shown that for all positive integers n that n^5-5 is divisible by 5.
I've also found that this seems to be the case for p|(n^p-n), given that p is one of the first five primes. And that it is not true that p divides n^p-n when p is a composite positive integer.
2 AnswersMathematics4 years ago
Win 8.1 Pro with parental web filter is set up. How can I prevent messages about blocked sites appearing when Google is blocked?
1 AnswerGoogle5 years ago
Problem: Determine by inspection at least two solutions of the Initial Value Problem y' = 3y^(2/3), when y(0) = 0. I found that y=x^3.?
2 AnswersMathematics7 years ago
Given a plane in 3-space that has a conic section traced on it. Can we find a cone to intersect on the section given a random plane?
1 AnswerPhysics7 years ago

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Is there a proof which shows that for all primes p, n^p-n is divisible by p?

Win 8.1 Pro with parental web filter is set up. How can I prevent messages about blocked sites appearing when Google is blocked?

Problem: Determine by inspection at least two solutions of the Initial Value Problem y' = 3y^(2/3), when y(0) = 0. I found that y=x^3.?

Given a plane in 3-space that has a conic section traced on it. Can we find a cone to intersect on the section given a random plane?