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25 August, 13:04

2. Which of the following proves that 209 is NOT a prime number?

a) 209 * 1 = 209

b) 19 * 11 = 209

c) 209 is an odd number

d) 209 is not visible by 2,3,5 and 7.

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Answers (1)
  1. 25 August, 13:07
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    the answer is B) 19 * 11 = 209

    coz A prime number is a whole number greater than 1 whose only factors are 1 and itself.

    but here it is a multiple of 11 and 19 ...

    so its proved
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