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All 7-multiples sieved out (missing below). Then children discover they cannot build 11 as a TABLE OF 3 ROWS OR 5 ROWS OR 7 ROWS. (Check it for yourself.)
So 11 is a ROW-NUMBER. And GNOMON 11 builds TABLE-NUMBERS: Each 11-multiple is a TABLE-NUMBER, to be SIEVED OUT! Note!! THE FIRST MULTIPLE OF 11 IS ITS SQUARE: 11 X 11.
And so on, for the higher Row-Numbers (Primes).
2 | 3 | | 5 |
| 7 | | | | 11 | | 13 | | |
| 17 | | 19 | | | |
23 | | | | | | 29 |
| 31 | | | | | |
37 | | | | 41 | | 43 |
| | | 47 | | | |
| | 53 | | | | |
| 59 | | 61 | | | |
| | 67 | | | | 71 |
| 73 | | 75 | | | |
79 | | | | 83 | | |
| | | 89 | | | |
93 | | | | 97 | | |
| 101 | | 103 | | | |
107 | | 109 | | | | 113 |
| | | | | | |
121 | | | | | | 127 |
| 129 | | 131 | | | |
| | 137 | | 139 | | |
| 143 | | | | | |
149 | | 151 | | | | |
| 157 | | | | | |
163 | | | | 167 | | 169 |
| | | 173 | | | |
| | 179 | | 181 | | |
| | | 187 | | | |
191 | | 193 | | | | 197 |
| 199 | | | | | |
| | | | 209 | | 211 |
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