tim 3 so nguyen to lien tiep sao cho tong cac binh phuong cua no cung la so ngyen to da
Tim 4 so nguyen to lien tiep sao cho tong cua 4 so nguyen to do cung la 1 so nguyen to
tim tat ca cac so nguyen to sao cho tong binh phuong cua chung cung bang 1 so nuyen to
tim 4 so nguyen to lien tiep sao cho tong 4 so do la so nguyen to
1. Tim tat ca cac so co 2 chu so sao cho moi so gap 2 lan tich cua no?
2. Tim so nguyen to co 3 chu so biet rang neu viet so do theo thu tu nguoc lai thi ta duc 1 so la lap phuong cua 1 so tu nhien?
3. Tim so tu nhien co 4 chu so biey chu so hang nghin bang chu so hang don vi chu so hang tram bang chu so hang chuc va so do viet duoc duoi dang tich cua 3 so nguyen to lien tiep?
tim tap hop cac so co hai chu so la binh phuong cua 1 so nguyen to
tim 4 so nguyen to lien tiep ma tong cua chung la 1 so nguyen to
phan tich cac so sau ra thua so nguyen to roi tim tap hop cac uoc cua moi so do 78;70
3)tim hai so tu nhien lien tiep co tich bang 1190
Tim 5 so nguyen sao cho moi so trong cac so do deu bang binh phupng cua tong 4 so nguyen tren