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1 September, 02:14

Which number is a prime number?

A. 111

B. 121

C. 131

D. 141

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Answers (2)
  1. 1 September, 05:43
    0
    A prime number is a number that have no divisors.

    A. 111 have 3^37

    B. 121 have 11^11

    C. 131 have none

    D. 141 have 3^47

    So you can say that your answer is C. 131
  2. 1 September, 06:03
    0
    I know for a fact that 121=11 times 11

    hmm

    to tell if a number is divisible by 3, add the digits and see if the sum is divisible by 3

    well 111 is divisible by 3

    141 is also divisible by 3

    answer is C
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