1

1 1.

18 1, 2, 3, 6, 9 182.

1 211

122 = 4

32 = 9

52 = 25

72 = 49

112 = 121

132 = 169

172 = 289

2 2, 3, 5, 7, 11, 13 211

( 17 172 = 289 211)

211

211 3.

2

150

1

150

15

10

3

5

2

5

150 = 2 ( 3 ( 5 ( 5

2

2

2 ) 150

3 ) 75

5 ) 25

5

150 = 2 ( 3 ( 5 ( 5

4. ... (...) 2

...1. (1) ...(2) (3) ...

... 56 84 140 56 =

84 =

104 =

56 84 104 1 2 2 7 ... =

2. 1) ... 2) 3) ...

... 56 84 140 2) 56 84 1042) 28 42 707) 14 21 352 3 5

... 2 x 2 x 7 = 28

...1. 2. 5. ... (...) 2

...1. 1) ...2) 3) 4) 2 3 ... ... 10, 24 30 10 =

24 =

30 =

... = 5 x 2 x 3 x 2 x 2 = 120

2. 1) ... 2) 2 3) 2 4) ...

... 10, 24 30

2) 10 24 305) 5 12 153) 1 12 31 4 1

... = 2 x 5 x 3 x 4 = 120

...1. 2. ... ... 1. a, b c ... a, b 2. ... a b ab ... x ... = 2 80 ... 2 ... ... x ... = 2 2 x ... = 80

3. .. == 40

_1368079885.unknown