Regular Expressions 101

Pro

\ban ASCII word boundary

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

\d{6}a digit, repeated exactly 6 times

Non-Capturing Group(?:\D|$)

1st Alternative\D

\Dany character that's not a digit

2nd Alternative$

$end of line

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

\b5\d{6}(?:\D|$)

New

34324, 5604020, 45309, 45, 55, 5102903
5604020

34324, 5604020, 45309, 45, 55, 5102903
5604020