Is 87 A Prime Number. Therefore, 87 is not a prime number as it has more than two factors which are 1, 87, 3 etc. The online computer game “is this prime?” tests a player’s knowledge of prime numbers—and just surpassed 2,999,999 attempts.
Is 87 an even number? 21 is visible by 1, 3, 7, and 21; The prime number checker is used to check if a positive integer is a prime number.
