regex - Match all numeric characters without letters before or after -


i try this:

\d+(?![a-za-z]+[0-9])\d+

but string:

azeaze4 t4 45-azej565 5t 555t 44444

i want find:

45 44444

you can use \d+ within word boundary : 

\b\d+\b

see demo https://regex101.com/r/kh4cv5/1


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