Has the proposition that the multiple of 6 plus one is a prime number been proved?
Obviously, it's wrong. For example, 6 * 4 + 1 = 25 is a composite number
RELATED INFORMATIONS
- 1. In 0,1,2,3. Of these natural numbers, if there are x prime numbers, a odd numbers, Y composite numbers and B even numbers, then
- 2. If there are p prime numbers, Q composite numbers, s even numbers and t odd numbers in the first n natural numbers, then (P-T) + (Q-S) =? Strive to be specific
- 3. At 1, 2, 3 If there are p prime numbers, Q composite numbers, m odd numbers and n even numbers, then (P-M) + (q-n)=______ .
- 4. The sum of two adjacent natural numbers is 17, one is prime and the other is composite. What are these two numbers?
- 5. I am a prime number, my one digit and ten digit are two adjacent composite numbers in the natural number, I am ()
- 6. The sum of all prime numbers within 10 is______ Is a prime and even number______ .
- 7. Write a prime number that is coprime with 6. Write a composite number that is coprime with 6
- 8. Write two coprime numbers that meet the requirements. (1) both are prime numbers () (2) both are composite numbers () (3) both are odd numbers () (4) a prime number and a composite number A cuboid is 8 cm long, 6 cm wide and 5 cm high. Its bottom area is () square cm, its surface area is () square cm and its volume is () cubic cm
- 9. Is a prime number and a composite number necessarily coprime
- 10. () and () are prime numbers and composite numbers. They are coprime RT
- 11. If n is prime, N + 2 is prime and N > 10, we prove that N + (n + 2) is a multiple of 12
- 12. A is a prime less than 10, a + 40 is a prime, a + 80 is a prime, and a is a prime______ .
- 13. A is a prime less than 10, a + 40 is a prime, a + 80 is a prime, and a is a prime______ .
- 14. Let a = (11 111), (a total of N 1), find all N, so that a is prime
- 15. P is prime 2 ^ P + 3 ^ P = a ^ n prove n = 1
- 16. 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
- 17. Prime guess prime = 2 * prime + prime,
- 18. How to prove that P = n! - 1 is a prime number
- 19. If a ^ n - 1 is a prime, prove that a = 2 and N is a prime
- 20. 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