tim cac so nguyen duong n sao cho n^2/60-n la 1 so nguyen to

tim tat ca cac so nguyen duong n sao cho:2^n-1 chia het cho 7

1.tim tat ca cac so nguyen duong n sao cho tat ca cac so n+1,n+5,n+7,n+13,n+17,n+25,n+37 deu la cac so nguyen to

TRINH BAY DAY DU GIUP MINH NHA

tim tat ca cac so nguyen duong n sao cho 2^n- chiahet cho 7

tim cac so nguyen duong m va n sao cho 3m-1/2n va 3n-1/2m cung la so nguyen duong

cac ban giai ho minh nha

tim cac so nguyen duong n sao cho 2^2/60-n la SNT

tim tat ca cac so nguyen duong n sao cho so T=2^n+1 la so chinh phuong 

tim cac cap so nguyen duong nguyen to cung nhau sao cho: (x+y)/(x^2+y^2)=7/25

B1. Cho f(1)=1008,f(1)+f(2)+...+f(n)=n^2.f(n) f(n)la ham so duong

tinh f(2015)

B2 Cho cac so nguyen to q,p,r,s sao cho cac so sau deu la so nguyen to p^s+s^q,q^s+s^r,r^s+s^p

tim cac so p,q,r,s

B3 co a,b,c duong a mu 3+bmu3=c^3

so sanh a^2015+b^2015 va c^2015