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In The Settlers of Catan, the board consists of 19 hex tiles in the obvious symmetrical array; these tiles are of six kinds, abstractly AAAA BBBB CCCC DDD EEE F. I'm wondering how many ways the tiles can be arranged so that no two tiles of the same kind are adjacent. — Tamfang ( talk) 07:54, 23 December 2012 (UTC)
Is it true that the square of any prime number (like 22 = 4, 32 = 9, 52 = 25, etc) has exactly three divisors? In other words, if p is a prime number, is it always true that the only divisors of p2 are 1, p and p2? -- Toshio Yamaguchi 12:13, 23 December 2012 (UTC)
Mathematics desk | ||
---|---|---|
< December 22 | << Nov | December | Jan >> | December 24 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
In The Settlers of Catan, the board consists of 19 hex tiles in the obvious symmetrical array; these tiles are of six kinds, abstractly AAAA BBBB CCCC DDD EEE F. I'm wondering how many ways the tiles can be arranged so that no two tiles of the same kind are adjacent. — Tamfang ( talk) 07:54, 23 December 2012 (UTC)
Is it true that the square of any prime number (like 22 = 4, 32 = 9, 52 = 25, etc) has exactly three divisors? In other words, if p is a prime number, is it always true that the only divisors of p2 are 1, p and p2? -- Toshio Yamaguchi 12:13, 23 December 2012 (UTC)