How to quickly verify whether a number is prime Find out a random number, how to quickly determine whether it is a prime? The main idea of the algorithm can be required

Remove the random number with the trivial root of 2 to the random number. If there is a remainder of 0, it will jump out. It doesn't mean that the random number is prime

RELATED INFORMATIONS

1. Is there such a prime number, which is still prime if it is added with 10 and 14 respectively? If so, there are () prime numbers
2. If a ^ n - 1 is a prime, prove that a = 2 and N is a prime
3. How to prove that P = n! - 1 is a prime number
4. Prime guess prime = 2 * prime + prime,
5. Given that n > 1, a > 1 and an-1 is a prime number, find the value of a, and explain that n is also a prime number Is the n-th power of a - 1 is a prime number, not an-1 is a prime number, the above type is wrong
6. P is prime 2 ^ P + 3 ^ P = a ^ n prove n = 1
7. Let a = (11 111), (a total of N 1), find all N, so that a is prime
8. A is a prime less than 10, a + 40 is a prime, a + 80 is a prime, and a is a prime______ ．
9. A is a prime less than 10, a + 40 is a prime, a + 80 is a prime, and a is a prime______ ．
10. If n is prime, N + 2 is prime and N > 10, we prove that N + (n + 2) is a multiple of 12
11. How to prove whether a number is prime or not in many ways To prove whether a number is a prime, for example, to prove whether the integer n is a prime, let I = 2 and do the divisor in turn until I
12. How to prove that a number is prime?
13. The number a is prime, and both a + 10 and a + 14 are prime. What is the number a?
14. A number a is prime, and a + 10, a + 14 are also prime. How much is a? A number a is prime, and a + 10, a + 14 are also prime. How much is a? Use elementary formula Help me
15. Find such a prime number, when it adds 10 and 14, it is still prime
16. Prove that prime numbers are infinite
17. How to prove that there are infinitely many primes?
18. Who can help me explain how to prove that there are infinitely many primes Let a = p1p2 × ×pn+1 But a cannot be replaced by P1, P2 So a is a prime, But 2 * 3 * 5 * 7 * 11 * 13 + 1 = 30031 can be divisible. How is this proof right
19. How to prove that there are infinitely many primes It's urgent
20. It is proved that there are infinitely many primes in the form of 6K + 5 Write specific process, hope to list different ways to prove. The best way to prove the contrary!