Có 4 cách sau :
3 + 31 .
5 + 29 .
11 + 23 .
17 + 17 .
Các câu hỏi tương tự
co tat ca bao nhieu cach viet so 34 duoi dang tong cua hai so nguyen to
co tat ca bao nhieu cach viet so 34 duoi dang tong cua 2 so nguyen to ? nhanh nha ban oi minh dang hoc
co bn nhieu cach viet so 34 duoi dang so nguyen to
so 2009 co the viet duoc duoi dang tong cua 2 so nguyen to ko ? tai sao? giup minh voi
Viet so 43 duoi dang tong cua hai so nguyen to a,b voi a<b. khi do b =?
viet cac so sau duoi dang luy thua cua 1 so tu nhien lon hon 1 viet nhieu cach neu co the la 9;16;27;81;64;625;10000
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?
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)
viet cac so sau duoi dang tong cua 2 so nguyen to :
a. 25
b. 74
c. 102