Structure of the Multiplication Table for [ modulo P ]

by Frank Charles Fung ( 1st published in June , 2006 )

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Section VI : On { FIRON - 2/P }

Topic #1Introduction & Summary for the Section
Topic #2Setting up the value [ Q ]
Topic #3Setting up { FIRON - 2/P }
Topic #4Defining { FIRON - Y/P } in general
Topic #5A Very Special Property of { FIRON - 2/P }
Topic #6A First Glance at { FIRON - 2/P }
Topic #7Why { FIRON - 2/P } in controlling on the { RING's }
Topic #8Mersenne Prime [ 2,147,483,647 ]
Topic #9The 'prime number' [ 173 ]

Topic #1 --- Introduction & Summary for the Section :

In this Section, we shall find out why { FIRON - 2/P } is controlling on the size of the { RING's } .

And we also recognize { FIRON - 2/P } as the 2nd-most important property for [ modulo P ] , [ P ] being a { prime number } ,

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Topic #2 --- Setting up the value [ Q ] :

For the 'odd' { prime number } , [ P ] , greater than [ 3 ] , we again set-up the value [ Q ] such that :

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Topic #3 --- Setting up { FIRON - 2/P } :

We then define { FIRON - 2/P } as the smallest non-zero value of [ N ] satisfying the equation :

{ FIRON } then stands for the { FIRst instance of ONe } , and that is to say :

We then have these two (2) equations below as being always true & valid :

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Topic #4 --- Defining { FIRON - Y/P } in general :

We also define , in general , { FIRON - Y/P } as the smallest non-zero value of [ N ] satisfying the equation :

We note here , first-of-all , that { FIRON - 1/P } is always equal to [ 1 ] , arising from :

For all values of [ Y ] in the range of [ 2 ] to [ Q ] , we can again go thru the search process of :

Then , for the value [ Y ] in the range of [ 2 ] to [ Q ] , we always have these two (2) equations below as being true & valid :

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Topic #5 --- A Very Special Property of { FIRON - Y/P } :

Let us now take note of a very special property of { FIRON - Y/P } , namely :

For the case of [ Y ] being equal to [ 1 ] , this is trivial :

For the case of [ Y ] being in the range of [ 2 ] to [ Q ] :

Thus , we can conclude that { FIRON - Y/P } is necessarily divisible into [ E ] .

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Topic #6 --- A First Glance at { FIRON - 2/P } :

Let us now take a look at the relation between [ FIRON - 2/P ] and the value [ Q ] ,

For this purpose , let us now bring-in the { Fermat Little Theorem } , which states that :

We then have this derived equation , for the value of [ Z ] being equal to [ 2 ] :

We then bring back this 'defining' equation for { FIRON - 2/P } , from { Topic #3 } above :

And these two (2) equations together then tell us that :

Let us now express this relation via this equation below :

We then have this table for the values of [ FIRON - 2/P ] , [ T ] , & [ Q ] :

Prime
[ P ]
FIRON
- 2 / P
Value
of
T
Value
of
Q
Prime
[ P ]
FIRON
- 2 / P
Value
of
T
Value
of
Q
Prime
[ P ]
FIRON
- 2 / P
Value
of
T
Value
of
Q
3 2 1 2 67 66 1 66 157 52 3 156
5 4 1 4 71 35 2 70 167 83 2 166
7 3 2 6 73 9 8 72 173 172 1 172
11 10 1 10 79 39 2 78 179 178 1 178
13 12 1 12 83 82 1 82 181 180 1 180
17 8 2 16 89 11 8 88 191 95 2 190
19 18 1 18 97 48 2 96 193 96 2 192
23 11 2 22 101 100 1 100 197 196 1 196
29 28 1 28 103 51 2 102 199 99 2 198
31 5 6 30 107 106 1 106 211 210 1 210
37 36 1 36 109 36 3 108 223 37 6 222
41 20 2 40 113 28 4 112 227 226 1 226
43 14 3 42 127 7 18 126 229 76 3 228
47 23 2 46 131 130 1 130 233 29 8 232
53 52 1 52 137 68 2 136 239 119 2 238
59 58 1 58 149 148 1 148 241 24 10 240
61 60 1 60 151 15 10 150 251 50 5 250

And we shall find out why { FIRON - 2/P } is controlling on the 'Square-Of-Square' { RING's } , next .

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Topic #7 --- Why { FIRON - 2/P } is controlling on the { RING's } :

Let us now demonstrate why { FIRON - 2/P } is controlling on the 'Square-Of-Square' { RING's } .

Let us now arbitrarily pick any one of the { 28 numbers } on the { RING OF 28 } for our demonstration here :

Let us now do a { keep-on-squaring } process on the number [ 23 ] , to find out :

And we were able to establish that it takes 28 { 'squaring' operations } to arrive back at [ 23 mod 233 ] ,

We can then write , for the 28 { 'squaring' operations } :

or ,

Let us now bring-in the more general format for this equation , i.e. :

And we see here that the value of [ N ] is controlling on the size of the 'Square-Of-Square' { RING } , and in particular :

But before we can make-a-move on the above equation ,

We shall now make a key observation here :

We are now ready take a closer look at the equation :

Let us now 'divide' both sides by [ Y mod P ] to arrive at this equation below :

Let us recall that we have established that [ F ] is indeed the value [ FIRON - Y/P ] , and we can now bring-in these 2 'governing' equations , as follows :

We can then conclude that [ F ] is necessarily divisible into [ 2^N - 1 ] ,

Thus , we can now write :

yielding :

And the smallest non-zero value of [ N ] satisfying this equation is then the value [ FIRON - 2/F ] .

Thus , { FIRON - 2/F } is controlling on the 'Square-Of-Square' { RING's } arising from :

And we shall be taking a quick look at 2 examples , next , for a better understanding / appreciation of this very special feature .

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Topic #8 --- Mersenne Prime [ 2,147,483,647 ] :

Let us now take a look at the { Mersenne Prime } [ 2,147,483,647 ] ,

And we can write :

And let us write-down what we would expect on the 'Square-Of-Square' { RING's } for [ modulo 2,147,483,647 ] ,

And we can confirm that we do have 6 x { RING's OF 5 } for the solution to the equation :

And we have marked-off 3 pairs { multiplicative conjugates } for [ modulo 2,147,483,647 ] here , for indicative purposes :

And we simply note here that the 2 members of each pair , in these 6 x [ RING's OF 5 ] , are always on separate { RING's } .

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Topic #9 --- The { prime number } [ 173 ] :

Let us now take a brief look at the { prime number } [ 173 ] , i.e. :

And we take special note here that :

We then have the { Characteristic Pyramid } & the 3 x { RING's OF 14 } for [ modulo 173 ] as follows :

And we have marked-off 3 pairs of { multiplicative conjugates } for [ modulo 173 ] here , for indicative purposes :

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go to the next section : Section VIII --- The { Chinese Remainder Theorem } revisited

go to the last section : Section VI --- { Modulo 3361 }

return to the HomePage for { Structure of the Multiplication Table for [ modulo P ] }

Original dated 2006-6-25