Numbers 1 - 50 Flashcards

1
Q

2

A

Prime

Factors: 1, 2

Multiples: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24

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2
Q

3

A

Prime

Factors: 1, 3

Multiplies: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36

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3
Q

4

A

2 x 2

Factors: 1, 2, 4

Multiples: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48

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4
Q

5

A

Prime

Factors: 1, 5

Multiples: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60

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5
Q

6

A

2 x 3

Factors: 1, 2, 3, 6

Multiples: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72

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6
Q

7

A

Prime

Factors: 1, 7

Multiples: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84

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7
Q

8

A

2 x 4

Factors: 1, 2, 4, 8

Multiples: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96

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8
Q

9

A

3 x 3

Factors: 1, 3, 9

Multiples: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108

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9
Q

10

A

2 x 5

Factors: 1, 2, 5, 10

Multiples: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120

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10
Q

11

A

Prime

Factors: 1, 11

Multiples: 11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121, 132

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11
Q

12

A

2 x 6
3 x 4

Factors: 1, 2, 3, 4, 6, 12

Multiples: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144

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12
Q

13

A

Prime

Factors: 1, 13

Multiples: 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156

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13
Q

14

A

2 x 7

Factors: 1, 2, 7, 14

Multiples: 14, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168

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14
Q

15

A

3 x 5

Factors: 1, 3, 5, 15

Multiples: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180

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15
Q

16

A

2 x 8
4 x 4

Factors: 1, 2, 4, 8, 16

Multiples: 16, 32, 48, 64, 80, 96, 112, 128, 144, 160

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16
Q

17

A

Prime

Factors: 1, 17

Multiples: 17, 34, 51, 68, 85, 102, 119, 136, 153, 170

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17
Q

18

A

2 x 9
3 x 6

Factors: 1, 2, 3, 6, 9, 18

Multiples: 18, 36, 54, 72, 90, 108, 126, 144, 162, 180

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18
Q

19

A

Prime

Factors: 1, 19

Multiples: 19, 38, 57, 76, 95, 114, 133, 152, 171, 190

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19
Q

20

A

2 x 10
4 x 5

Factors: 1, 2, 4, 5, 10, 20

Multiples: 20, 40, 60, 80, 100, 120, 140, 160, 180, 200

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20
Q

21

A

3 x 7

Factors: 1, 3, 7, 21

Multiples: 21, 42, 63, 84, 105, 126, 147, 168, 189, 210

21
Q

22

A

2 x 11

Factors: 1, 2, 11, 22

Multiples: 22, 44, 66, 88, 110, 132, 154, 176, 198, 220

22
Q

23

A

Prime

Factors: 1, 23

Multiples: 23, 46, 69, 92, 115, 138, 161, 184, 207, 230

23
Q

24

A

2 x 12
3 x 8
4 x 6

Factors: 1, 2, 3, 4, 6, 8, 12, 24

Multiples: 24, 48, 72, 96, 120, 144, 168, 192, 216, 240

24
Q

25

A

5 x 5

Factors: 1, 5, 25

Multiples: 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300

25
26
2 x 13 | Factors: 1, 2, 13, 26 ## Footnote Multiples: 26, 52, 78, 104, 130, 156, 182, 208, 234, 260
26
27
3 x 9 | Factors: 1, 3, 9, 27 ## Footnote Multiples: 27, 54, 81, 108, 135, 162, 189, 216, 243, 270
27
28
2 x 14 4 x 7 | Factors: 1, 2, 4, 7, 14, 28 ## Footnote Multiples: 28, 56, 84, 112, 140, 168, 196, 224, 252, 280
28
29
Prime | Factors: 1, 29 ## Footnote Multiples: 29, 58, 87, 116, 145, 174, 203, 232, 261, 290
29
30
2 x 15 3 x 10 5 x 6 | Factors: 1, 2, 3, 5, 6, 10, 15, 30 ## Footnote Multiples: 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360
30
31
Prime | Factors: 1, 31 ## Footnote Multiples: 31, 62, 93, 124, 155, 186, 217, 248, 279, 310
31
32
2 x 16 4 x 8 | Factors: 1, 2, 4, 8, 16, 32 ## Footnote Multiples: 32, 64, 96, 128, 160, 192, 224, 256, 288, 320
32
33
3 x 11 | Factors: 1, 3, 11, 33 ## Footnote Multiples: 33, 66, 99, 132, 165, 198, 231, 264, 297, 330
33
34
2 x 17 | Factors: 1, 2, 17, 34 ## Footnote Multiples: 34, 68, 102, 136, 170, 204, 238, 272, 306, 340
34
35
5 x 7 | Factors: 1, 5, 7, 35 ## Footnote Multiples: 35, 70, 105, 140, 175, 210, 245, 280, 315, 350
35
36
2 x 18 3 x 12 4 x 9 6 x 6 | Factors: 1, 2, 3, 4, 6, 9, 12, 18, 36 ## Footnote Multiples: 36, 72, 108, 144, 180, 216, 252, 288, 324, 360
36
37
Prime | Factors: 1, 37 ## Footnote Multiples: 37, 74, 111, 148, 148, 222, 259, 296, 333, 370
37
38
2 x 19 | Factors: 1, 2, 19, 38 ## Footnote Multiples: 38, 76, 114, 152, 190, 228, 266, 304, 342, 380
38
39
3 x 13 | Factors: 1, 3, 13, 39 ## Footnote Multiples: 39, 78, 117, 156, 195, 234, 273, 312, 351, 390
39
40
2 x 20 4 x 10 5 x 8 | Factors: 1, 2, 4, 5, 8, 10, 20, 40 ## Footnote Multiples: 40, 80, 120, 160, 200, 240, 280, 320, 360, 400
40
41
Prime | Factors: 1, 41 ## Footnote Multiples: 41, 82, 123, 164, 205, 246, 287, 328, 369, 410
41
42
2 x 21 3 x 14 6 x 7 | Factors: 1, 2, 3, 6, 7, 14, 21, 42 ## Footnote Multiples: 42, 84, 126, 168, 210, 252, 294, 336, 378, 420
42
43
Prime | Factors: 1, 43 ## Footnote Multiples: 43, 86, 129, 172, 215, 258, 301, 344, 387, 430
43
44
2 x 22 4 x 11 | Factors: 1, 2, 4, 11, 22, 44 ## Footnote Multiples: 44, 88, 132, 176, 220, 264, 308, 352, 396, 440
44
45
3 x 15 5 x 9 | Factors: 1, 3, 5, 9, 15, 45 ## Footnote Multiples: 45, 90, 135, 180, 225, 270, 315, 360, 405, 450
45
46
2 x 23 | Factors: 1, 2, 23, 46 ## Footnote Multiples: 46, 92, 138, 184, 230, 276, 322, 368, 414, 460
46
47
Prime | Factors: 1, 47 ## Footnote Multiples: 47, 94, 141, 188, 235, 282, 329, 376, 423, 470
47
48
2 x 24 3 x 16 4 x 12 6 x 8 | Factors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 ## Footnote Multiples: 48, 96, 144, 192, 240, 288, 336, 384, 432, 480
48
49
7 x 7 | Factors: 1, 7, 49 ## Footnote Multiples: 49, 98, 147, 196, 245, 294, 343, 392, 441, 490
49
50
2 x 25 5 x 10 | Factors: 1, 2, 5, 10, 25, 50 ## Footnote Multiples: 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600