Regex for 16 digit number
Matches a number with exactly 16 digit(s).
^\d{16}$
Proof it works
| Sample | Should match | Result |
|---|---|---|
3074185296307418 |
yes | pass |
30741852963074185 |
no | pass |
307418529630741 |
no | pass |
aaaaaaaaaaaaaaaa |
no | pass |