Question

Tell which number is prime 35 69 89 90

Answer 1

89 is the prime number hope that helps :)

Answer 2

The number is prime if it is not divisible by anything other than itself or 1. 

35 / 7 = 5, so 35 is not it. 

69 / 3 = 23, so that's not it either. 

89 cannot be divided evenly by anything other than one or itself. This is your answer! 

(Side note: 90 can be divided by 10, and 10 can be divided by 2)
hope it helped