Các câu hỏi tương tự
Tim mot so nguyen to p biet rang p bang tong cua 2 so nguyen to va bang hieu cua hai so nguyen to.
Giup minh nha cac bn, minh gap lam.
tim so nguyen to biet rang so do bang tong cua 2 so nguyen to va bang hieu cua 2 so nguyen to
Cho p la so nguyen to lon hon 3. Biet rang p+2 cung la so nguyen to. Chung minh rang p+1 chia het cho 6.
tim so nguyen to biet rang so do bang tong 2 so nguyen to va bang hieu 2 so nguyen to
tim so nguyen to,biet rang so do bang tong cua hai so nguyen to va bang hieu cua hai so nguyen to
1) Biet rang 996 va 632 khi chia cho n deu du 16 . Tim n.
2) Chung minh rang 7n + 10 va 5n + 7 la hai so nguyen to cung nhau ( n thuoc N )
3) Biet rang 7a + 2b chia het cho 13 (a,b thuoc N) . Chung minh rang 10a + b cung chia het cho 13
1) Mot so nguyen to chia cho 30 duoc so du la r.Tim r,biet r khong phai la so nguyen to.
2) Chung minh rang:
a/ So 17 khong viet duoc tong 3 hop so khong bang nhau.
b/Moi so le lon hon 17 deu viet duoc duoi dang 3 hop so khac nhau.
a)Tim cap so tu nhien x,y biet (x-2)(y-3)=5
b)Cho p la so nguyen to lon hon 3.Chung minhh rang: (p-1)(p+1) chia het cho 24
c)Tong cua nam so tu nhien lien tiep co tan cung bang chu so nao?(co giai thich)
LAM NHANH GIUP MINH NHA
Tim 3 so nguyen co tong bang -4, biet rang so thu nhat nhan 2, so thu hai cong voi 3, so thu ba tru di 4 thi duoc cac ket qua bang nhau. Tim 3 so do?
AI LAM DAU TIEN, CO TRINH BAY, DAP AN DUNG, MINH SE TICK CHO 1O CAI