Choose the number which is different from others:
2019
Choose the number which is different from others:
- A.
13
- B.
11
- C.
9
- D.
7
Attempted by 295 students.
Show answer & explanation
Correct answer: C
Answer: 9 is different.
Reason:
9 is a composite number because 9 = 3 × 3.
13 is a prime number (divisible only by 1 and 13).
11 is a prime number (divisible only by 1 and 11).
7 is a prime number (divisible only by 1 and 7).
Since 9 is composite and the other three numbers are prime, 9 is the number that is different from the others.
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