I know I'm odd. But am I prime?

First 10 positive odd numbers are

1,3,5,7,9,11,13,15,17&19

Out of these 7 are prime i.e. 3,5,7,11,13,17&19

So, 7 is the answer.

First 10 Positive odd numbers : 1,3,5,7,9,11,13,15,17,19

Prime numbers are : 3,5,7,11,13,17,19 So answer is 7

the first 10 are 1 , 3 , 5 , 7 , 9 , 11 , 13 , 15 , 17 , 19. 1, 3, 5, 7, 11, 17, 19 can not be divided by anything but 1 and it's self

First ten odd positive numbers are: 1,3,5,7,9,11,13,15,17,19. Now count out the prime numbers in the above mentioned list which is 7. Concluding that out of first ten positive odd numbers, we have seven prime numbers.

the first 10 positive odd numbers : 1;3;5;7;9;11;13;15;17;19 prime numbers : ...3, 5, 7, 11, 13, 17, 19..... => "7" of these numbers are prime

First Odd Numbers are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19. And the primary nos. there are 3, 5, 7, 11, 13, 17, 19 only :)

the first 10 +ve odd no.s are "1,3,5,7,9,11,13,15,27,19" out of these 10 numbers one SEVEN no.s are prime "3,5,7,11,13,17,19"