15. Which of the following are prime numbers?
(1) 103
(ii) 137
(iii) 161
(v) 217
(vi) 277
(vii) 331<

15. Which of the following are prime numbers?
(1) 103
(ii) 137
(iii) 161
(v) 217
(vi) 277
(vii) 331
(iv) 179
(viii) 397​

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Piper

2 thoughts on “15. Which of the following are prime numbers?<br />(1) 103<br />(ii) 137<br />(iii) 161<br />(v) 217<br />(vi) 277<br />(vii) 331<”

  1. prime numbers are the nos which have only 2 factors , 1 and the no itself.

    (I) Prime number

    (ii) Prime number

    (iii) it has 1,7 and 161 as factors. So it is not a prime.

    (v) Similarly even this is not a prime no.

    (vi) Prime no

    (vii) Prime no

    (iv) Prime no

    (viii) prime

    Reply

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