¯ 6-5
Prime and Nonprime Numbers
¯ ¯ 83
¯ : ¯M
1
ï¯ ¯ 3=1×3 3=3×1
3 ,1 : 3¯ ¯¯ M
: ¯M 2
8=2×4 8=4×2 8=1×8 8=8×1
, 4¯ ¯¯ M
8 , 4 , 2 ,1 :¯ 8
,ï ,F ï
¯¯ 8 ¯ 3 ¯
?¯ 12 F
¯M ¯ 1 ¯¯¯
:¯ ¯I :¯ ¯I
3 × 2 × 2 = 12 12 6 × 2 = 12
6×2
3×2×2 3 × 2 × 2 = 12
3 , 2 :¯ 12
110