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From Wikipedia, the free encyclopedia

263 is the natural number between 262 and 264. It is also a prime number.

In mathematics

263 is a balanced prime,[1] an irregular prime,[2] a Ramanujan prime,[3] a Chen prime,[4] and a safe prime.[5]

It is also a strictly non-palindromic number and a happy number.[6]

References

This page was last edited on 26 March 2018, at 21:17
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