Question

12. Which of the following numbers has only 2 factors? a)10 c)8 b)7 d) 9​

Answer 1

Answer:

b) 7

Step-by-step explanation:

7 is a prime number

7=1×7

7 has just 2 factor : 1 and 7

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Answer 2

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Factors of following Numbers :

10 ➸ 1 , 2 , 5 , 10

8 ➸ 1, 2, 4 , 8

7 ➸ 1 , 7

9 ➸ 1, 3 , 9

So, the correct answer is 7 because it has only 2 factors 1 and 7 .

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