what is prime number? Share with your friends Share 1 Hari Gautam answered this the number which can be divisible by 1 or itself is called prime number . ex - 2 ,3 ,5,7 ,11 ... 2 View Full Answer Bunny answered this Prime numbers are numbers which do not have factors other than 1.Consider the prime numbers 2,3,5,7,11,13,17,19,23,...All of the above are prime numbers and they dont have factors other than 1.Thumbs up!! 1