so do la
999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
vi so tu nhien dai vo tan nen khong the biet duoc dau
tớ sẽ lấy số 8 vì 2008 chia hết cho 8.
2008:8=251.
tcu71 là số đó bằng 251 chữ số 8.
số đó là
88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888.
vì 1 hàng chứa được 111 chữ số 8 nên 2 hàng số 8 có 222 chữ số 8 còn lại 29 chữ số 8 tớ đưa về hàng thứ 3
gọi là abcd có
abcd+a+b+c+d=2008
1000a+100b+10c+d+a+b+c+d=2008
1001a+101b+11c+2d=2008
