Question

1. Which of these is a composite number? a) 63 b) 1 c) 61 d) 31​

Answer 1

Answer:

63 is a composite number because it has more than 2 factors

Answer 2

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Which of these is a composite number? a) 63 b) 1 c) 61

(d) 31

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(C) 61

and

(D) 31

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(A) option is composite because it is divisible by more than 2 numbers like 1, 3 and itself

Option (B) is composite because 1 is neither prime nor composite

And 61 and 31 are prime numbers because they only have 2 factor 1 and the number itself