@ @pbjïØ Üa@ @RP
x
.144 = 122 < x < 162 = 256
.(256 − 144) − 1 = 111
200 7 ()
. 7 , 14 , 21 , … , 196 7
.1 , 2 , 3 , … , 28
. 28
500 < n < 2000 n ()
11 7
. 77 11 7
77 500
. 500 = 6
77 2000
n
77
.25 − 6 = 19
500 < n < 2000 . 2000 = 25
500 10 77
77
4 ()
3