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readme.md

PrimeTime

Description

A command line applicaton which accepts an integer as a paramater which displays a multiplication table of prime numbers, up to and including the given integer.

Usage

Clone the repo.

Run bundle install

To run the program, run bin/prime_time

By default the app will return a 10 column and row times table of prime numbers. However, by appending --count <integer> and replacing <integer> with an integer of your choosing, you can make the table as large or as small as you like.

In order to check tests and functionality, run rspec spec

Examples

Standard output (bin/prime_time) with no parameters given should look like this:

   |  2|  3|  5|  7| 11| 13| 17| 19| 23| 29|
---|---|---|---|---|---|---|---|---|---|---|
  2|  4|  6| 10| 14| 22| 26| 34| 38| 46| 58|
  3|  6|  9| 15| 21| 33| 39| 51| 57| 69| 87|
  5| 10| 15| 25| 35| 55| 65| 85| 95|115|145|
  7| 14| 21| 35| 49| 77| 91|119|133|161|203|
 11| 22| 33| 55| 77|121|143|187|209|253|319|
 13| 26| 39| 65| 91|143|169|221|247|299|377|
 17| 34| 51| 85|119|187|221|289|323|391|493|
 19| 38| 57| 95|133|209|247|323|361|437|551|
 23| 46| 69|115|161|253|299|391|437|529|667|
 29| 58| 87|145|203|319|377|493|551|667|841|

bin/prime_time --count 15 would show:

    |   2|   3|   5|   7|  11|  13|  17|  19|  23|  29|  31|  37|  41|  43|  47|
----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
   2|   4|   6|  10|  14|  22|  26|  34|  38|  46|  58|  62|  74|  82|  86|  94|
   3|   6|   9|  15|  21|  33|  39|  51|  57|  69|  87|  93| 111| 123| 129| 141|
   5|  10|  15|  25|  35|  55|  65|  85|  95| 115| 145| 155| 185| 205| 215| 235|
   7|  14|  21|  35|  49|  77|  91| 119| 133| 161| 203| 217| 259| 287| 301| 329|
  11|  22|  33|  55|  77| 121| 143| 187| 209| 253| 319| 341| 407| 451| 473| 517|
  13|  26|  39|  65|  91| 143| 169| 221| 247| 299| 377| 403| 481| 533| 559| 611|
  17|  34|  51|  85| 119| 187| 221| 289| 323| 391| 493| 527| 629| 697| 731| 799|
  19|  38|  57|  95| 133| 209| 247| 323| 361| 437| 551| 589| 703| 779| 817| 893|
  23|  46|  69| 115| 161| 253| 299| 391| 437| 529| 667| 713| 851| 943| 989|1081|
  29|  58|  87| 145| 203| 319| 377| 493| 551| 667| 841| 899|1073|1189|1247|1363|
  31|  62|  93| 155| 217| 341| 403| 527| 589| 713| 899| 961|1147|1271|1333|1457|
  37|  74| 111| 185| 259| 407| 481| 629| 703| 851|1073|1147|1369|1517|1591|1739|
  41|  82| 123| 205| 287| 451| 533| 697| 779| 943|1189|1271|1517|1681|1763|1927|
  43|  86| 129| 215| 301| 473| 559| 731| 817| 989|1247|1333|1591|1763|1849|2021|

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A command line utility to print a multiplication table of prime numbers

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