I would like to limit a string of numbers to 14 digits, and require that the first 5 digits are: 26173. The rest of the digits can be any number between 1-9. Example: 26173000740380.
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1Which language are you using? – httPants Sep 09 '21 at 20:46
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1Does this answer your question? [Learning Regular Expressions](https://stackoverflow.com/questions/4736/learning-regular-expressions) – jonrsharpe Sep 09 '21 at 20:46
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The regexp 26173\d{9} specifies the first 5 characters must be 26173 and the following 9 characters must be any decimal number \d.
If the remaining 9 characters must be between 1 - 9 you could use 26173[1-9]{9}. Both examples are using java regexp syntax.
Regexp planet is a good site for testing regular expressions
httPants
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