Which of these number is not like others?8, 22, 27,7
- 8
- 22
- 27
- 7
Explanation
8 – even number
- 22 – even number
- 27 – odd number
- 7 – odd number
So based on even/odd, 8 and 22 are even; 27 and 7 are odd → not helpful.
Now check prime numbers:
- 7 – prime
- 8 – not prime
- 22 – not prime
- 27 – not prime
So 7 is the only prime number.
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