neu p=2 =>p2+44 chia het cho 2 la hop so
=> p=2 khong thoa man
neu p=3 =>p2+44=53 la so nguyen to
=> p=3 thoa man
neu p>3 => p khong chia het cho 3
=> p2 chia cho 3 du 1
=> p2+44 chia het cho 3
vay p=3
Tim so nguye to p sao cho p+2 va p+10 la cac so nguyen to (lam bang 2 cach)
Xét xem 59^3 + 56^3 la hop so hay la so nguyen to. Va trinh bay cach lam
Tim hai so nguyen to a va b sao cho: 3a-13=b(a-3)
Trinh bay cach lam lun he
tim so nguyen to p sao cho no vua la tong cua 2 so nguyen to vua la hieu cua 2 so nguyen to nao do ket qua bang 5 cho minh cach giai nha
cho n la so nguyen to lon hon 3. hoi n^2 la nguyen to hay hop so. ai lam loi giai va lam dung la duoc tich
cho dap an la hop so nhung phai lam cach lam
Cho biểu thuc A=p×k voi p cho truoc la so nguyen to. Tim k thuoc N* de tich A la so nguyen to
Trinh bay han ra co ly mink cho 3 tick
Tim cac so nguyen to x ,y biet:
x2+117=y2
Help me va trinh bay cach lam nhe
tim so nguyen to p de p2+44 la so nguyen to
tim so nguyen to p de p2+44 la so nguyen to