Mk khog the tick ra
tat ca cac so nguyen to nhieu lam
Mk khog the tick ra
tat ca cac so nguyen to nhieu lam
viet tat ca cac so nguyen co gia tri tuyet doi nho hon 20 theo thu tu tuy y. lay moi so tru di so thu tu cua no ta duoc mot hieu. tong cua tat ca cac hieu do bang bao nhieu
tim tat ca cac cap so nguyen x,y sao cho2xy+x-2y=4
tim tat ca cac so nguyen duong x,y thoa man : 2011x+7y=42231
tim tat ca cac so nguyen x so cho x^2+x-1 la so chinh phuong
Tim tat ca cac so nguyen x thoa man: (x+2014)^2=64.(x+2007)^3
tim tat ca cac so nguyen n sao cho n^2+4 chia het n+2
tim tat ca cac cap so nguyen x,y thoa man 2^x+1.3^y=12^x
tim tat ca cac cap so nguyen x,y thoa man;\(\frac{1}{x}\)+\(\frac{1}{y}\)=\(\frac{1}{p}\)trong do p la so nguyen to cho truoc
tim tat ca cac so nguyen duong n sao cho:2^n-1 chia het cho 7