Numbers 1 - 50 Flashcards
2
Prime
Factors: 1, 2
Multiples: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24
3
Prime
Factors: 1, 3
Multiplies: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36
4
2 x 2
Factors: 1, 2, 4
Multiples: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48
5
Prime
Factors: 1, 5
Multiples: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60
6
2 x 3
Factors: 1, 2, 3, 6
Multiples: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72
7
Prime
Factors: 1, 7
Multiples: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84
8
2 x 4
Factors: 1, 2, 4, 8
Multiples: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96
9
3 x 3
Factors: 1, 3, 9
Multiples: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108
10
2 x 5
Factors: 1, 2, 5, 10
Multiples: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120
11
Prime
Factors: 1, 11
Multiples: 11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121, 132
12
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
13
Prime
Factors: 1, 13
Multiples: 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156
14
2 x 7
Factors: 1, 2, 7, 14
Multiples: 14, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168
15
3 x 5
Factors: 1, 3, 5, 15
Multiples: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180
16
2 x 8
4 x 4
Factors: 1, 2, 4, 8, 16
Multiples: 16, 32, 48, 64, 80, 96, 112, 128, 144, 160
17
Prime
Factors: 1, 17
Multiples: 17, 34, 51, 68, 85, 102, 119, 136, 153, 170
18
2 x 9
3 x 6
Factors: 1, 2, 3, 6, 9, 18
Multiples: 18, 36, 54, 72, 90, 108, 126, 144, 162, 180
19
Prime
Factors: 1, 19
Multiples: 19, 38, 57, 76, 95, 114, 133, 152, 171, 190
20
2 x 10
4 x 5
Factors: 1, 2, 4, 5, 10, 20
Multiples: 20, 40, 60, 80, 100, 120, 140, 160, 180, 200
21
3 x 7
Factors: 1, 3, 7, 21
Multiples: 21, 42, 63, 84, 105, 126, 147, 168, 189, 210
22
2 x 11
Factors: 1, 2, 11, 22
Multiples: 22, 44, 66, 88, 110, 132, 154, 176, 198, 220
23
Prime
Factors: 1, 23
Multiples: 23, 46, 69, 92, 115, 138, 161, 184, 207, 230
24
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
25
5 x 5
Factors: 1, 5, 25
Multiples: 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300
26
2 x 13
Factors: 1, 2, 13, 26
Multiples: 26, 52, 78, 104, 130, 156, 182, 208, 234, 260
27
3 x 9
Factors: 1, 3, 9, 27
Multiples: 27, 54, 81, 108, 135, 162, 189, 216, 243, 270
28
2 x 14
4 x 7
Factors: 1, 2, 4, 7, 14, 28
Multiples: 28, 56, 84, 112, 140, 168, 196, 224, 252, 280
29
Prime
Factors: 1, 29
Multiples: 29, 58, 87, 116, 145, 174, 203, 232, 261, 290
30
2 x 15
3 x 10
5 x 6
Factors: 1, 2, 3, 5, 6, 10, 15, 30
Multiples: 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360
31
Prime
Factors: 1, 31
Multiples: 31, 62, 93, 124, 155, 186, 217, 248, 279, 310
32
2 x 16
4 x 8
Factors: 1, 2, 4, 8, 16, 32
Multiples: 32, 64, 96, 128, 160, 192, 224, 256, 288, 320
33
3 x 11
Factors: 1, 3, 11, 33
Multiples: 33, 66, 99, 132, 165, 198, 231, 264, 297, 330
34
2 x 17
Factors: 1, 2, 17, 34
Multiples: 34, 68, 102, 136, 170, 204, 238, 272, 306, 340
35
5 x 7
Factors: 1, 5, 7, 35
Multiples: 35, 70, 105, 140, 175, 210, 245, 280, 315, 350
36
2 x 18
3 x 12
4 x 9
6 x 6
Factors: 1, 2, 3, 4, 6, 9, 12, 18, 36
Multiples: 36, 72, 108, 144, 180, 216, 252, 288, 324, 360
37
Prime
Factors: 1, 37
Multiples: 37, 74, 111, 148, 148, 222, 259, 296, 333, 370
38
2 x 19
Factors: 1, 2, 19, 38
Multiples: 38, 76, 114, 152, 190, 228, 266, 304, 342, 380
39
3 x 13
Factors: 1, 3, 13, 39
Multiples: 39, 78, 117, 156, 195, 234, 273, 312, 351, 390
40
2 x 20
4 x 10
5 x 8
Factors: 1, 2, 4, 5, 8, 10, 20, 40
Multiples: 40, 80, 120, 160, 200, 240, 280, 320, 360, 400
41
Prime
Factors: 1, 41
Multiples: 41, 82, 123, 164, 205, 246, 287, 328, 369, 410
42
2 x 21
3 x 14
6 x 7
Factors: 1, 2, 3, 6, 7, 14, 21, 42
Multiples: 42, 84, 126, 168, 210, 252, 294, 336, 378, 420
43
Prime
Factors: 1, 43
Multiples: 43, 86, 129, 172, 215, 258, 301, 344, 387, 430
44
2 x 22
4 x 11
Factors: 1, 2, 4, 11, 22, 44
Multiples: 44, 88, 132, 176, 220, 264, 308, 352, 396, 440
45
3 x 15
5 x 9
Factors: 1, 3, 5, 9, 15, 45
Multiples: 45, 90, 135, 180, 225, 270, 315, 360, 405, 450
46
2 x 23
Factors: 1, 2, 23, 46
Multiples: 46, 92, 138, 184, 230, 276, 322, 368, 414, 460
47
Prime
Factors: 1, 47
Multiples: 47, 94, 141, 188, 235, 282, 329, 376, 423, 470
48
2 x 24
3 x 16
4 x 12
6 x 8
Factors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Multiples: 48, 96, 144, 192, 240, 288, 336, 384, 432, 480
49
7 x 7
Factors: 1, 7, 49
Multiples: 49, 98, 147, 196, 245, 294, 343, 392, 441, 490
50
2 x 25
5 x 10
Factors: 1, 2, 5, 10, 25, 50
Multiples: 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600