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个人中心收藏查看我的收藏0有用+10317播报讨论上传视频自然数之一展开3个同名词条317（三百一十七）是316和318之间的一个自然数。是一个奇数、质数。中文名三百一十七
外文名three hundred and seventeen
汉字大写叁佰壹拾柒
罗马数字CCCXVII
二进制100111101
四进制10331
八进制475
十二进制225
十六进制13D
倒数循环节79位

目录
1数学性质2天文领域3交通领域4其他领域
数学性质
播报编辑奇数第66个素数。前一个为313、下一个为331。艾森斯坦素数十进制下，既是可右截短素数，也是可左截短素数 [1]317将这个素数右边的数（7）省去变31，31还是素数；再将这个素数（31）右边的数（1）省去变3，还是素数，这种性质的数为质质数。陈素数奇素数孤立素数（OEIS中的数列A007510） [2]可删素数（OEIS中的数列A080608） [3]危险素数（OEIS中的数列A059456） [4]邪恶质数（OEIS中的数列A027699） [5]几何弱素数（OEIS中的数列A068828） [6]317是由2x²+13y²所产生的素数（OEIS中的数列A107132） [7]毕达哥拉斯质数317是满足3n-1的素数（OEIS中的数列A003627） [8]此数字虽然是自然素数，但不是高斯素数。前一个有此性质的自然素数是313、下一个是337。（OEIS中的数列A002313） [9]其第一象限之高斯素数的整数分解为 -i×(11+14i)×(14+11i)。十进制的等数位数。由1构成的循环单位中，317个位的数是素数。严格非回文数
天文领域
播报编辑鲸鱼座81b是一颗距离地球317光年、位于鲸鱼座的系外行星。317 Roxane是小行星带的小行星
交通领域
播报编辑317国道东京都道317号环状六号线
其他领域
播报编辑公元317年（317年）公元前317年3月17日平年的第317天是11月13日闰年的第317天是11月12日郏姓是在《百家姓》中排第317位的中文姓氏。新手上路成长任务编辑入门编辑规则本人编辑我有疑问内容质疑在线客服官方贴吧意见反馈投诉建议举报不良信息未通过词条申诉投诉侵权信息封禁查询与解封©2025 Baidu 使用百度前必读 | 百科协议 | 隐私政策 | 百度百科合作平台 | 京ICP证030173号 京公网安备11000002000001号window.PAGE_DATA= 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