tong tat ca cac so nguyen to co dang 13a(chu y so tren la so co dang 13a chu khong phai 13 nhan a)
cho so nguyen to nho nhat co dang 13a la
so so nguyen to co dang 13a
Co bao nhieu so nguyen to co dang 13a ?
cho P la so nguyen to lon hon e
a)chung to rang P co dang 6k+1hoac 6k+3
b)biet 8P+1va P deu la so nguyen to(Plon hon 3).Hoi P+100 ;a so nguyen to hay hop so
so tu nhien n co dang n=37k la so nguyen to khi k =?
so nguyen to nho nhat co dang 10a la
so nguyen to nho nhat co dang 3a1 la
so tu nhien n co dang n =37k la so nguyen to khi k =