Các câu hỏi tương tự
tim hai so nguyen sao cho tong cua chung va tich cua chung la hai so doi nhau
tim 2 so nguyen sao cho tich cua chung va tong cua chung la hai so doi nhau
Cho 31 so nguyen trong do co 5 so bat ki co tong la so nguyen duong.Hay chung to rang tong cua 31 so do deu la so nguyen duong
tim so nguyen to P sao cho P vua la tong cua hai so nguyen to vua la hieu cua hai so nguyen to
Tim 2 so nguyen sao cho tong va tich cua chung la 2 so doi nhau
tim 3 so nguyen to sao cho tich cua chung gap 7 lan tong cua cua chung.
Tim 3 so nguyen to sao cho tich cua chung gap 5 lan tong cua chung
tim 2 so nguyen to p,q biet :
a/hieu cua chung bang 35
b/tong cua chung bang 63
p;p+6;p+8;p+12;p+14 deu la so nguyen to
tim so nguyen to P sao cho P+94 va P+1994 deu la so nguyen to