Regular Expressions 101

Explanation
Pro

\ban ASCII word boundary

Non-Capturing Group(?:\d[ -]*?){13,16}

{13,16}repeats the group contents below between 13 and 16 times:

\da digit

Character Class[ -]*?

*?matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\ban ASCII word boundary

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

\b(?:\d[ -]*?){13,16}\b

New

Valid
5000123456789001, 5000-1234-5678-9001, 5000 1234 5678 9001

Invalid
50001234567890010000, 5000-1234-5678-9001-0000, 5000 1234 5678 9001 0000, 5000-1234-5678-90010-000, 5000 1234 5678 90010 000