Question

Choose the odd option
a) 11
b)13
c)15
d)17

Answer 1

Step-by-step explanation:

option c is the answer ...

11,13,17 are prime numbers....

15 is composite number...

Answer 2

15 is odd one out here as 15 is not prime number while 11 , 13 & 17 are prime Numbers

Step-by-step explanation:

We need to choose odd one out from

a) 11

b)13

c)15

d)17

11 , 13 , 15 , 17  - all are odd numbers

But  11 , 13 & 17  are Prime numbers

as 11 = 11 *1  

   13 = 13 * 1

   17  = 17 * 1

while 15 is not a prime number

15 = 15 * 1  = 3 * 5

Hence 15 is odd one out here as 15 is not prime number while 11 , 13 & 17 are prime Numbers

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