什么是素数

孪生素数

  • 问题补充:什么叫孪生素数?
  • 两个相邻的质数就为孪生质数,比如5和7现在通过寻找最大的孪生质数来寻找最大的质数
  • 300以内的奇数偶数素数合数

  • 问题补充:请大家帮忙
  • 奇数:1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87,89,91,93,95,97,99,101,103,105,107,109,111,113,115,117,119,121,123,125,127,129,131,133,135,137,139,141,143,145,147,149,151,153,155,157,159,161,163,165,167,169,171,173,175,177,179,181,183,185,187,189,191,193,195,197,199,201,203,205,207,209,211,213,215,217,219,221,223,225,227,229,231,233,235,237,239,241,243,245,247,249,251,253,255,257,259,261,263,265,267,269,271,273,275,277,279,281,283,285,287,289,291,293,295,297,299偶数:2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138,140,142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218,220,222,224,226,228,230,232,234,236,238,240,242,244,246,248,250,252,254,256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300素数:3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293合数:4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50,51,52,54,55,56,57,58,60,62,63,64,65,66,68,69,70,72,74,75,76,77,78,80,81,82,84,85,86,87,88,90,91,92,93,94,95,96,98,99,100,102,104,105,106,108,110,111,112,114,115,116,117,118,119,120,121,122,123,124,125,126,128,129,130,132,133,134,135,136,138,140,141,142,143,144,145,146,147,148,150,152,153,154,155,156,158,159,160,161,162,164,165,166,168,169,170,171,172,174,175,176,177,178,180,182,183,184,185,186,187,188,189,190,192,194,195,196,198,200,201,202,203,204,205,206,207,208,209,210,212,213,214,215,216,217,218,219,220,221,222,224,225,226,228,230,231,232,234,235,236,237,238,240,242,243,244,245,246,247,248,249,250,252,253,254,255,256,258,259,260,261,262,264,265,266,267,268,270,272,273,274,275,276,278,279,280,282,284,285,286,287,288,289,290,291,292,294,295,296,297,298,299,300
  • 编程验证歌德巴赫猜想。即一个大于等于6的偶数可以表示为两个素数之和 用pascal

  • 问题补充:编程验证歌德巴赫猜想。即一个大于等于6的偶数可以表示为两个素数之和 用pascal
  • 要积分哦,这程序还没试的: program godbah(input,output); var p,q,n,j:longint; flq,flp:boolean; begin readln (n); p:=1; repeat p:=p+1; q:=n-p; flp:=true; for j:=2 to round (sqrt(p)) do {判断p是否为质数} if p mod j=0 then begin flp:=false; break {如果flp值为真(p是质数),就退出循环} end; flq:=true; for j:=2 to round (sqrt(q)) do{判断q是否为质数} if q mod j=0 then begin flq:=false; break {如果flq值为真(q是质数),就退出循环} end; until flq and flp; {当p与q均为质数时结束repeat循环} writeln (n,'=',p,'+',q); readln; end.
  • 验证哥德巴赫猜想:任何一个大于6的偶数均可表示为2个素数之和。例如6=3+3, 8=3+5,。。。18=5+13.。将6~1

  • 问题补充:验证哥德巴赫猜想:任何一个大于6的偶数均可表示为2个素数之和。例如6=3+3, 8=3+5,。。。18=5+13.。将6~1
  • 验证6-100#include <stdio.h>#include <math.h>int f(int n)//判断n是否为素数,是则返回1,否则返回0{ int i=2; while(i<=sqrt(n)) if (n%i++==0)return 0; return 1;}void main(){ int num,a; for(num=6;num<=100;num+=2) for (a=2;a<=num/2;a++) if (f(a)&&f(num-a)) { printf("%d=%d+%d\n",num,a,num-a); break;//只输出一种情况 } }
  • 用VB求100以内素数和,用双循环。

  • 问题补充:我是初学者,这是我编程的。看看哪里出错了,怎么改?这个计算的结果要大。Private Sub Command1_Click() For i = 2 To 100 For n = 2 To i - 1 If i Mod n = 0 Then Exit For Else Sum = Sum + i End If Next n, i Print Sum En... 我是初学者,这是我编程的。看看哪里出错了,怎么改?这个计算的结果要大。Private Sub Command1_Click()For i = 2 To 100 For n = 2 To i - 1 If i Mod n = 0 Then Exit For Else Sum = Sum + i End If Next n, i Print SumEnd Sub 展开
  • PrivateSubCommand1_Click()DimResultAsStringDimSumAsLongSum=0Fori=1To100IfIsSushu(i)=TrueThenSum=Sum+iResult=Result&""&iEndIfNextMsgBoxResult&vbNewLine&"=========总和为========"&SumEndSubFunctionIsSushu(ByValNumAsInteger)'判断是否是素数DimSushuAsBooleanSushu=TrueIfNum>=2ThenFori=2ToNum-1If(NumModi)=0ThenSushu=FalseExitForEndIfNextIsSushu=SushuElseIsSushu=FalseEndIfEndFunction
  • 在1.2.6.13.51中,合数有——,既是偶数又是素数的有——既是奇数又是合数...

  • 问题补充:在1.2.6.13.51中,合数有——,既是偶数又是素数的有——既是奇数又是合数的有——.
  • 在1.2.6.13.51中,合数有—6,51—,既是偶数又是素数的有—2—既是奇数又是合数的有—51—.
  • <<堆垒素数论>>中的"论"字解释意思,1、分析,说明;2、学说,文章;3、衡量,评定。应该选第几

  • 问题补充:<<堆垒素数论>>中的"论"字解释意思,1、分析,说明;2、学说,文章;3、衡量,评定。应该选第几种意思?(说序号)
  • 如果里面东西,文化知识较多就是是一本书的话就是1,如果是一篇文章就选2,不会是3