A 4 digit number is formed by repeating a 2 digit number such as 2525, 3232 etc. Any number of this form is exactly divisible by	Pick one.
A) 7	B) 11	C) 13	D) Smallest 3 digit prime number	E) None
Sol.   Smallest 3 digit prime number is 101.   Clearly, 2525 = 25 x 101;   3232 = 32 x 101, etc.   ∴ Each such number is divisible by 101.   Answer Smallest 3 digit prime number
<result>D</result>
A 4 digit number is formed by repeating a 2 digit number such as 2525, 3232 etc. Any number of this form is exactly divisible by