… From [Prime Numbers]…For example, 2, 3, 5, 7, 11, etc. Prime numbers other than 2 are odd numbers, so they are called odd prime numbers. Natural numbers other than 1 that are not prime numbers and those with negative signs (±4, ±6, etc.) are called composite numbers. … *Some terminology explanations that mention "odd prime numbers" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 【素数】より…例えば,2,3,5,7,11などである。2以外の素数は奇数なので奇素数という。1以外の自然数で素数でないものおよびそれにマイナスの符号をつけたもの(±4,±6など)を合成数という。… ※「奇素数」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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