The number 1111A1111A is divisible by 15. What is A?
I appreciate your help.
1111 5 1111 5 mod 15 = 0
If a number is divisible by 15 then it must be divisible by both 3 and 5.
If a number is divisible by 5 what does it have to end in?
Thank you Guest! and thank you Melody!