A) 7
B) 11
C) 13
D) Smallest 3 digit prime number
Correct Answer: D
Solution :
Let the unit digit be x and ten's digit be y. Number \[=1000y+100x+10y+x\] \[=1010y+101x\] \[=101\,\,(10y+x)\] Clearly, this number is divisible by 101, which is the smallest three digit prime number.You need to login to perform this action.
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