What is prime number? Share with your friends Share 0 Vishwa Raviraaj.s.i answered this Numbers that are divisible by 1 and itself is called the prime numbers.EG-1, 3, 5, 7 0 View Full Answer Balasubramanian Balachandar answered this NUMBERS WHICH ARE ONLY DIVISIBLE BY 1 AND ITSELF EG: 2,3,5,7,11 0 Aditya Rathore answered this The number which have only two factor which is one and the number itself are called prime number. EX - 3 = 1,3 0