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25 February, 12:24

Which two of the prime numbers below are factors of 247.

a. 11

b. 13

c. 17

d. 19

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Answers (1)
  1. 25 February, 12:52
    0
    a) 247 : 11 = 22 r. 5 since there is a remainder it is not a factor

    b) 247 : 13 = 19 there is no remainder so this is a factor! The other factor is 19.

    Answer: B, D
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