Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
p là snt>3 => p^2 chia 3 bao giờ cũng dư 1 => p^2=3k+1
p^2+2012=3k+1+2012=3k+2013=3(k+671) chia hết cho 3 và >3
Vậy p^2+2012= hợp số
cho n la so nguyen to lon hon 3.hoi n2 +2006 la so nguyen hay hop so?
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
a, tim n de n^2 + 2006 la mot so chinh phuong
b, Cho n la so nguyen to lon hon 3. Hoi n^2 + 2006 la so nguyen to hay hop so.
cho p la so nguyen to lon hon 3. Biet 8p+1 va p deu la so nguyen to (p lon hon 3).Hoi p+100 la so nguyen to hay hop so
Cho p va p + 4 la 2 so nguyen to lon hon 3.CMR: p+8 la hop so.
Giup mk voi!!! Ai nhanh nhat, dung nhat like lun!
Cho P la so nguyen to lon hon 3 va 5p+1 cung la so nguyen to. Chung minh rang 7p+1 la hop so
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
tong cua 2 so nguyen to lon hon 2 la so nguyen to hay hop so ? Tai sao ?
a)tim n de \(n^2+2006\) la mot so chinh phuong
b) cho n la so nguyen to lon hon 3 .hoi \(n^2+2006\) la so nguyen to hay hop so