Các câu hỏi tương tự
tim so so nguyen n nho nhat sao cho n^2+5^n+1 la so nguyen to.
tra loi n=?
tim so nguyen to ab co 2 chu so khac nhau sao cho ba cung la 1 so nguyen to va ab - ba la 1 so chinh phuong
Tim tat ca so nguyen sao cho p + 2 va p + 4 cung la so nguyen to
Tim 4 so nguyen to lien tiep sao cho tong cua 4 so nguyen to do cung la 1 so nguyen to
tim so nguyen to p sao cho:
a,p+2 va p+4 la so nguyen to
b,p+2 va p+6 va p+8 la so nguyen to
c,p+10 va p+14 la so nguyen to
tim so nguyen to p sao cho p^2+1 va p^4+1 la so nguyen to
tim so nguyen to p sao cho p^2+1 va p^4+1 la so nguyen to.
tim so nguyen to p sao cho p^2+1 va p^4+1 la so nguyen to
Cho p la so nguyen to (p<3) va 2p+1 cung la so nguyen to . Hoi 4p+1 la so nguyen to hay hop so?Vi sao?