How do I add an integer to an existing integer?

[Aaron]

If I have the # 123456, How do I add the # 7 to the end of it. So the end
result will be 1234567.

 

[Mike H]

Aaron

=A1&7

Mike

 

[David Biddulph]

=A1&"7" if you want text
=--(A1&"7") if you want a number

 

[Bernd P]

=123456*10+7

Regards,
Bernd