Regular expression for 7 digits not starting with 0 or 1

Question

I am trying to accept only 7 digit long number not starting with 0 or 1

7089097 - OK

0089097 - Not good

1089097 - Not good

This is what i tri

Answer 1

This regex will work:

^[2-9][0-9]{6}$ 

Out of 7 digits 1 is consumed by first position 2-9 and then next 6 digits can be from 0-9