regex101: integer greater or equal to 65536

Non-Capturing Group(?:[1-5][0-9]{5,}|6(?:[1-4][0-9]{4,}|5(?:[1-4][0-9]{3,}|5(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})|[6-9][0-9]{2,})|[6-9][0-9]{3,})|[7-9][0-9]{4,})

1st Alternative[1-5][0-9]{5,}

Character Class[1-5]

1-5one character from 1 (49₁₀) to 5 (53₁₀)

Character Class[0-9]{5,}

{5,}matches at least 5 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative6(?:[1-4][0-9]{4,}|5(?:[1-4][0-9]{3,}|5(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})|[6-9][0-9]{2,})|[6-9][0-9]{3,})

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

Non-Capturing Group(?:[1-4][0-9]{4,}|5(?:[1-4][0-9]{3,}|5(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})|[6-9][0-9]{2,})|[6-9][0-9]{3,})

1st Alternative[1-4][0-9]{4,}

Character Class[1-4]

1-4one character from 1 (49₁₀) to 4 (52₁₀)

Character Class[0-9]{4,}

{4,}matches at least 4 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative5(?:[1-4][0-9]{3,}|5(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})|[6-9][0-9]{2,})

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

Non-Capturing Group(?:[1-4][0-9]{3,}|5(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})|[6-9][0-9]{2,})

1st Alternative[1-4][0-9]{3,}

Character Class[1-4]

1-4one character from 1 (49₁₀) to 4 (52₁₀)

Character Class[0-9]{3,}

{3,}matches at least 3 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative5(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

Non-Capturing Group(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})

1st Alternative[1-2][0-9]{2,}

Character Class[1-2]

1-2one character from 1 (49₁₀) to 2 (50₁₀)

Character Class[0-9]{2,}

{2,}matches at least 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative3(?:[1-5][0-9]{1,}|[6-9][0-9]*)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

Non-Capturing Group(?:[1-5][0-9]{1,}|[6-9][0-9]*)

1st Alternative[1-5][0-9]{1,}

Character Class[1-5]

1-5one character from 1 (49₁₀) to 5 (53₁₀)

Character Class[0-9]{1,}

{1,}matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative[6-9][0-9]*

Character Class[6-9]

Character Class[0-9]*

3rd Alternative[4-9][0-9]{1,}

3rd Alternative[6-9][0-9]{2,}

3rd Alternative[6-9][0-9]{3,}

3rd Alternative[7-9][0-9]{4,}

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

Search reference

Regular Expression

(?:[1-5][0-9]{5,}|6(?:[1-4][0-9]{4,}|5(?:[1-4][0-9]{3,}|5(?:[1-2][0-9]{2,}|3(?:[1-5][0-9]{1,}|[6-9][0-9]*)|[4-9][0-9]{1,})|[6-9][0-9]{2,})|[6-9][0-9]{3,})|[7-9][0-9]{4,})

New

Regular Expressions 101

Regular Expression

Substitution