## quad prime chain of base 11 [642q1]

The following shows the quad prime chain starting from the prime quadruplets and

and are prime quadruplets; and are also prime quadruplets, where

WinPFGW and Primo were used to certify primality.

a |
leastb |
c |
digits of a |
digits of b |
digits of c |
date computed |
b/a digit ratio |
---|---|---|---|---|---|---|---|

11 | 628 | 1819841 | 2 | 3 | 7 | 23 Mar 2014 | 1.500000 |

1819841 | 9103 | 36 324585837547 406329165261 439460349661 |
7 | 4 | 38 | 24 Mar 2014 | 0.571429 |

## quad prime chain of base 101 [6q2]

The following shows the quad prime chain starting from the prime quadruplets 101, 103, 107 and 109:

** a**,

**,**

*a+2***and**

*a+6***are prime quadruplets;**

*a+8***,**

*c***,**

*c+2***and**

*c+6***are also prime quadruplets, where**

*c+8***.**

*c=a^6+100b*WinPFGW and Primo were used to certify primality.

a |
leastb |
c |
digits of a |
digits of b |
digits of c |
date computed |
b/a digit ratio |
---|---|---|---|---|---|---|---|

101 | 7411 | 1 061520891701 |
3 | 4 | 13 | 22 Mar 2014 | 1.333333 |

1 061520891701 |
>6299998 | ? | 13 | >6 | ? | 31 Mar 2014 | ?.?????? |

## quad prime chain of base 11 [6q1]

The following shows the quad prime chain starting from the prime quadruplets 11, 13, 17 and 19:

** a**,

**,**

*a+2***and**

*a+6***are prime quadruplets;**

*a+8***,**

*c***,**

*c+2***and**

*c+6***are also prime quadruplets, where**

*c+8***.**

*c=a^6+100b*WinPFGW and Primo were used to certify primality.

a |
leastb |
c |
digits of a |
digits of b |
digits of c |
date computed |
b/a digit ratio |
---|---|---|---|---|---|---|---|

11 | 1387 | 1910261 | 2 | 4 | 7 | 19 Mar 2014 | 2.000000 |

1910261 | 2754610 | 48 591046795725 949286385443 710745456561 |
7 | 7 | 38 | 21 Mar 2014 | 1.000000 |

## quad prime chain of base 187631 [2q46]

The following shows the quad prime chain starting from the prime quadruplets 187631, 187633, 187637 and 187639:

** a**,

**,**

*a+2***and**

*a+6***are prime quadruplets;**

*a+8***,**

*c***,**

*c+2***and**

*c+6***are also prime quadruplets, where**

*c+8***.**

*c=a^2+100b*WinPFGW and Primo were used to certify primality.

a |
leastb |
c |
digits of a |
digits of b |
digits of c |
date computed |
b/a digit ratio |
---|---|---|---|---|---|---|---|

187631 | 32389 | 35208631061 | 6 | 5 | 11 | 18 May 2012 | 0.833333 |

## quad prime chain of base 171161 [2q45]

The following shows the quad prime chain starting from the prime quadruplets 171161, 171163, 171167 and 171169:

** a**,

**,**

*a+2***and**

*a+6***are prime quadruplets;**

*a+8***,**

*c***,**

*c+2***and**

*c+6***are also prime quadruplets, where**

*c+8***.**

*c=a^2+100b*WinPFGW and Primo were used to certify primality.

a |
leastb |
c |
digits of a |
digits of b |
digits of c |
date computed |
b/a digit ratio |
---|---|---|---|---|---|---|---|

171161 | 28039 | 29298891821 | 6 | 5 | 11 | 18 May 2012 | 0.833333 |

## quad prime chain of base 166841 [2q44]

The following shows the quad prime chain starting from the prime quadruplets 166841, 166843, 166847 and 166849:

** a**,

**,**

*a+2***and**

*a+6***are prime quadruplets;**

*a+8***,**

*c***,**

*c+2***and**

*c+6***are also prime quadruplets, where**

*c+8***.**

*c=a^2+100b*WinPFGW and Primo were used to certify primality.

a |
leastb |
c |
digits of a |
digits of b |
digits of c |
date computed |
b/a digit ratio |
---|---|---|---|---|---|---|---|

166841 | 21508 | 27838070081 | 6 | 5 | 11 | 18 May 2012 | 0.833333 |

## quad prime chain of base 165701 [2q43]

The following shows the quad prime chain starting from the prime quadruplets 165701, 165703, 165707 and 165709:

** a**,

**,**

*a+2***and**

*a+6***are prime quadruplets;**

*a+8***,**

*c***,**

*c+2***and**

*c+6***are also prime quadruplets, where**

*c+8***.**

*c=a^2+100b*WinPFGW and Primo were used to certify primality.

a |
leastb |
c |
digits of a |
digits of b |
digits of c |
date computed |
b/a digit ratio |
---|---|---|---|---|---|---|---|

165701 | 21679 | 27458989301 | 6 | 5 | 11 | 18 May 2012 | 0.833333 |