Sunday Times Teaser 2624 – Is It 2013?
by Victor Bryant
Here are some facts about a four digit number:
- Like 2013, it uses four consecutive digits in some order
- It is not divisible by any number from 2 to 11
- You could deduce the number if you knew the digit in a particular position
It turns out that knowing the digit position alone is sufficient to identify the number.
What is it?
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