user-avatar
nguyenthithuyduong30122007
2 năm trước
a)Cho p , 8p -1 là các số nguyên tố . Hỏi 8p + 1 là số nguyên tố hay hợp số? b) Tìm số nguyên tố p sao cho p +14 và p+ 40 cũng là số nguyên tố. c) tìm số nguyên tố x, y để x^2 + 45 = y^2
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

WRITE THE QUESTION TAGS 1. Everything seems alright........ ? 2. Nobody is ready to go............ 3. She never gets up early in the morning.............. 4. I know you won't mind sitting by Peter............., 5. Open the window, ........... 6. She almost never studied, .........? 7. Clever boys need never work very hard, .............. 8. She knows a lot about computer, ............ 9. That is the right answer,................ 10. The train will be leaving in 5 minutes,. .............. 11. Everybody likes him,. ................. 12. You have just bought a new motorbike,.................... 13. I have to leave now, ................. 14. They had known each other before 1975,............ 15. Your father gave you this book,.......... . 16. We should start early,...... 17. They hardly talk to each other, ........ 18. They are going to build a new primary school here.........., 19. Let's go to the cinema with me tonight,............. 20. Tom can't speak English fluently,..... 21. I am invited to the reception, ............ 22. Something is wrong with James today,............... 23. Don't be late next time,.......... .? 24. Everyone can learn how to swim, ...... 25. I don't think Neil Amstrong was born in 1940,.......... 26. We ought to hand in the report by Monday, ......... .? 27. I am older than you, .......... 28. You have to leave now, . .........? 29. They had to change the date of the meeting again,..... 30. The price of crude oil used to be lower than now, ....

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team