Primes whose first and last number is 3: Difference between revisions
Content added Content deleted
m (add 1x1, 5x5, 7x7, 9x9) |
m (to 10000) |
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for d in 1:2:9 |
for d in 1:2:9 |
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println("\n$(d)x$d primes < |
println("\n$(d)x$d primes < 10000:") |
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foreach(p -> print(rpad(last(p), 5), first(p) % 11 == 0 ? "\n" : ""), |
foreach(p -> print(rpad(last(p), 5), first(p) % 11 == 0 ? "\n" : ""), |
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enumerate(p3x3( |
enumerate(p3x3(10000, 10, d))) |
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println("\nTotal $(d)x$d primes less than 1,000,000: ", length(p3x3(1_000_000, 10, d)), ".") |
println("\nTotal $(d)x$d primes less than 1,000,000: ", length(p3x3(1_000_000, 10, d)), ".") |
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end |
end |
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</lang>{{out}} |
</lang>{{out}} |
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<pre> |
<pre> |
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1x1 primes < |
1x1 primes < 10000: |
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11 101 131 151 181 191 1021 1031 1051 1061 1091 |
11 101 131 151 181 191 1021 1031 1051 1061 1091 |
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1151 1171 1181 1201 1231 1291 1301 1321 1361 1381 1451 |
1151 1171 1181 1201 1231 1291 1301 1321 1361 1381 1451 |
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Total 1x1 primes less than 1,000,000: 2387. |
Total 1x1 primes less than 1,000,000: 2387. |
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3x3 primes < |
3x3 primes < 10000: |
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3 313 353 373 383 3023 3083 3163 3203 3253 3313 |
3 313 353 373 383 3023 3083 3163 3203 3253 3313 |
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3323 3343 3373 3413 3433 3463 3533 3583 3593 3613 3623 |
3323 3343 3373 3413 3433 3463 3533 3583 3593 3613 3623 |
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Total 3x3 primes less than 1,000,000: 2251. |
Total 3x3 primes less than 1,000,000: 2251. |
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5x5 primes < |
5x5 primes < 10000: |
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5 |
5 |
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Total 5x5 primes less than 1,000,000: 1. |
Total 5x5 primes less than 1,000,000: 1. |
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7x7 primes < |
7x7 primes < 10000: |
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7 727 757 787 797 |
7 727 757 787 797 7027 7057 7127 7177 7187 7207 |
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7237 7247 7297 7307 7417 7457 7477 7487 7507 7517 7537 |
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7547 7577 7607 7687 7717 7727 7757 7817 7867 7877 7907 |
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7927 7937 |
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Total 7x7 primes less than 1,000,000: 2104. |
Total 7x7 primes less than 1,000,000: 2104. |
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9x9 primes < |
9x9 primes < 10000: |
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919 929 9029 9049 9059 9109 9199 9209 9239 9319 9349 |
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919 929 |
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9419 9439 9479 9539 9619 9629 9649 9679 9689 9719 9739 |
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9749 9769 9829 9839 9859 9929 9949 |
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Total 9x9 primes less than 1,000,000: 2053. |
Total 9x9 primes less than 1,000,000: 2053. |
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</pre> |
</pre> |