Which one would you like it to be?
6: It is the only even number
15: It is the smallest composite number with two odd prime factors.
25: It is a square number.
35: It is the only number which does not meet any of the above three criteria.
Which one would you like it to be?
6: It is the only even number
15: It is the smallest composite number with two odd prime factors.
25: It is a square number.
35: It is the only number which does not meet any of the above three criteria.
Such questions expect you to second-guess what the person asking the question had in mind rather than any objective reason. It can, therefore, be considered a puzzle or riddle but is generally irrelevant as a mathematical question.
30
You could make a case for any of them.
8
9 - all the rest are prime
Most probably 48.
The answer is 12 every other numbers are odd numbers, but 12 is an even number
133 ,because all haveroot squares except 133
You have to find a pattern in the numbers, and exclude the one that messes up the pattern.
If the series is plus one, times two, plus one, times two, etc., the 8 does not belong.
1. It is the only one that is neither prime nor composite. It is the only one whose square (cube, higher powers) is the same as itself.
3 ((9-2)(7+1)(8-2)(6+1)(7-2)(5+1))
N, because it is not in the first half of the alphabet.