有趣的数学【26】:自私的质数

in #steempress6 years ago

质数(prime number)又称素数,有无限个。

质数定义为在大于1的自然数中,除了1和它本身以外不再有其他因数。

这有点像我们在日常生活中碰到的那些自私的人,他们为了避免有人来问他借钱,或者是请求帮助,就尽量避免和别人有所交集,因此他的朋友,只有他自己,他也最爱自己。

虽然这是一群自私的数字,但是,针对它们的研究还真是不少。

  • 大名鼎鼎的哥德巴赫猜想就是关于质数的:
任一大于2的偶数都可写成两个质数之和。
  • 黎曼猜想
黎曼猜想是波恩哈德·黎曼1859年提出的,他向柏林科学院提交了一篇题为“论小于给定数值的素数个数”的论文。这就是黎曼猜想的雏形。
关于质数的应用也有很多,比如在密码学应用中,汽车齿轮设计中,甚至于在杀虫剂的使用次数中国,都能看到质数的踪迹。

下面,我们来看一道题目,它也和质数有关:
image

具体的解题步骤我就不一一说明了,因为步骤不难,看过程就可以很清楚了:
image

可以看出,这道题最后的重点是,8044已经分成了3个质数的乘积,再也没有别的可能性了,因此就能得到确定的a,b,c的唯一值,从而就能求出最后的a+b+c的值了。

所以说,质数虽然比较自私,但是有时候他们还是能够组合在一起解决很多问题的。

生活中自私的人也是一样,只要我们善于利用,总能发挥出他们的作用。


参考文献:

百度百科:质数

百度百科:哥德巴赫猜想

百度百科:黎曼猜想

 


Posted from my blog with SteemPress : https://kissfirer.000webhostapp.com/maths26

Sort:  




This post has been voted on by the SteemSTEM curation team and voting trail in collaboration with @curie.

If you appreciate the work we are doing then consider voting both projects for witness by selecting stem.witness and curie!

For additional information please join us on the SteemSTEM discord and to get to know the rest of the community!

你那里天气如何?来一份新手村小卖部的美食吧!@teamcn-shop倘若你想让我隐形,请回复“取消”。

@cnbuddy给您叫了一份外卖!

@honeyday 罗罗 迎着台风 吃着软哥咖喱给您送来
新年快乐!

吃饱了吗?跟我猜拳吧! 石头,剪刀,布~

如果您对我的服务满意,请不要吝啬您的点赞~
@onepagex

This post has received a free upvote by @OnePageX
This bot is sponsored by OnePageX.com, the simplest cryptocurrency swap/exchange online!
To use it, simply reply to your post with @onepagex and you will get an upvote!

Congratulations! This post has been upvoted from the communal account, @minnowsupport, by kissfirer from the Minnow Support Project. It's a witness project run by aggroed, ausbitbank, teamsteem, someguy123, neoxian, followbtcnews, and netuoso. The goal is to help Steemit grow by supporting Minnows. Please find us at the Peace, Abundance, and Liberty Network (PALnet) Discord Channel. It's a completely public and open space to all members of the Steemit community who voluntarily choose to be there.

If you would like to delegate to the Minnow Support Project you can do so by clicking on the following links: 50SP, 100SP, 250SP, 500SP, 1000SP, 5000SP.
Be sure to leave at least 50SP undelegated on your account.

Coin Marketplace

STEEM 0.17
TRX 0.16
JST 0.029
BTC 75969.36
ETH 2843.76
USDT 1.00
SBD 2.56