1到100的因数
发布网友
发布时间:2022-06-07 17:23
我来回答
共5个回答
热心网友
时间:2023-10-22 21:06
1
1: 1
2: 1,2
3: 1,3
4: 1,2,4
5: 1,5
6: 1,2,3,6
7: 1,7
8: 1,2,4,8
9: 1,3,9
10: 1,2,5,10
11: 1,11
12: 1,2,3,4,6,12
13: 1,13
14: 1,2,7,14
15: 1,3,5,15
16: 1,2,4,8,16
17: 1,17
18: 1,2,3,6,9,18
19: 1,19
20: 1,2,4,5,10,20
21: 1,3,7,21
22: 1,2,11,22
23: 1,23
24: 1,2,3,4,6,8,12,24
25: 1,5,25
26: 1,2,13,26
27: 1,3,9,27
28: 1,2,4,7,14,28
29: 1,29
30: 1,2,3,5,6,10,15,30
31: 1,31
32: 1,2,4,8,16,32
33: 1,3,11,33
34: 1,2,17,34
35: 1,5,7,35
36: 1,2,3,4,6,9,12,18,36 37: 1,37
38: 1,2,19,38
39: 1,3,13,39
40: 1,2,4,5,8,10,20,40
41: 1,41
42: 1,2,3,6,7,14,21,42
43: 1,43
44: 1,2,4,11,22,44
45: 1,3,5,9,15,45
46: 1,2,23,46
47: 1,47
48: 1,2,3,4,6,8,12,16,24,48 49: 1,7,
491,49,7
50: 1,2,5,10,25,50
51: 1,3,17,51
52: 1,2,4,13,26,52
53: 1,53
54: 1,2,3,6,9,18,27,54
55: 1,5,11,55
56: 1,2,4,7,8,14,28,56
57: 1,3,19,57
58: 1,2,29,58
59: 1,59
60: 1,2,3,4,5,6,10,12,15,20,30,60
61: 1,61
62: 1,2,31,62
63: 1,3,7,9,21,63
64: 1,2,4,8,16,32,64
65: 1,5,13,65
66: 1,2,3,6,11,22,33,66
67: 1,67
68: 1,2,4,17,34,68
69: 1,3,23,69
70: 1,2,5,7,10,14,35,70
71: 1,71
72: 1,2,3,4,6,8,9,12,18,24,36,72 73: 1,
73:1,73
74: 1,2,37,74
75: 1,3,5,15,25,75
76: 1,2,4,19,38,76
77: 1,7,11,77
78: 1,2,3,6,13,26,39,78
79: 1,79
80: 1,2,4,5,8,10,16,20,40,80 81: 1,3,
9,27,81
82: 1,2,41,82
83: 1,83
84: 1,2,3,4,6,7,12,14,21,28,42,84 85: 1,
5,17,85
86: 1,2,43,86
87: 1,3,29,87
88: 1,2,4,8,11,22,44,88
89: 1,89
90: 1,2,3,5,6,9,10,15,18,30,45,90
91: 1,7,13,91
92: 1,2,4,23,46,92
93: 1,3,31,93
94: 1,2,47,94
95: 1,5,19,95
96: 1,2,3,4,6,8,12,16,24,32,48,96 97: 1,
97:1, 97
98: 1,2,7,14,49,98
99: 1,3,9,11,33,99
100: 1,2,4,5,10,20,25,50,100
参考资料:百度百科—因数
热心网友
时间:2023-10-22 21:06
1到100的因数和倍数:
1:1
2:1,2
3:1,3
4:1,2,4
5:1,5
6:1,2,3,6
7:1,7
8:1,2,4,8
9:1,3,9
10:1,2,5,10
11:1,11
12:1,2,3,4,6,12
13:1,13
14:1,2,7,14
15:1,3,5,15
16:1,2,4,8,16
17:1,17
18:1,2,3,6,9,18
19:1,19
20:1,2,4,5,10,20
21:1,3,7,21
22:1,2,11,22
23:1,23
24:1,2,3,4,6,8,12,24
25:1,5,25
26:1,2,13,26
27:1,3,9,27
28:1,2,4,7,14,28
29:1,29
30:1,2,3,5,6,10,15,30
31:1,31
32:1,2,4,8,16,32
33:1,3,11,33
34:1,2,17,34
35:1,5,7,35
36:1,2,3,4,6,9,12,18,36
37:1,37
38:1,2,19,38
39:1,3,13,39
40:1,2,4,5,8,10,20,40
41:1,41
42:1,2,3,6,7,14,21,42
43:1,43
44:1,2,4,11,22,44
45:1,3,5,9,15,45
46:1,2,23,46
47:1,47
48:1,2,3,4,6,8,12,16,24,48
49:1,7,49
50:1,2,5,10,25,50
51:1,3,17,51
52:1,2,4,13,26,52
53:1,53
54:1,2,3,6,9,18,27,54
55:1,5,11,55
56:1,2,4,7,8,14,28,56
57:1,3,19,57
58:1,2,29,58
59:1,59
60:1,2,3,4,5,6,10,12,15,20,30,60
61:1,61
62:1,2,31,62
63:1,3,7,9,21,63
64:1,2,4,8,16,32,64
65:1,5,13,65
66:1,2,3,6,11,22,33,66
67:1,67
68:1,2,4,17,34,68
69:1,3,23,69
70:1,2,5,7,10,14,35,70
71:1,71
72:1,2,3,4,6,8,9,12,18,24,36,72
73:1,73
74:1,2,37,74
75:1,3,5,15,25,75
76:1,2,4,19,38,76
77:1,7,11,77
78:1,2,3,6,13,26,39,78
79:1,79
80:1,2,4,5,8,10,16,20,40,80
81:1,3,9,27,81
82:1,2,41,82
83:1,83
84:1,2,3,4,6,7,12,14,21,28,42,84
85:1,5,17,85
86:1,2,43,86
87:1,3,29,87
88:1,2,4,8,11,22,44,88
89:1,89
90:1,2,3,5,6,9,10,15,18,30,45,90
91:1,7,13,91
92:1,2,4,23,46,92
93:1,3,31,93
94:1,2,47,94
95:1,5,19,95
96:1,2,3,4,6,8,12,16,24,32,48,96
97:1,97
98:1,2,7,14,49,98
99:1,3,9,11,33,99
100:1,2,4,5,10,20,25,50,100
倍数:不用说,例如3,那就是3*1、3*2、3*3·······倍数无限多
热心网友
时间:2023-10-22 21:07
1到100的因数如下:
1: 1
2: 1,2
3: 1,3
4: 1,2,4
5: 1,5
6: 1,2,3,6
7: 1,7
8: 1,2,4,8
9: 1,3,9
10: 1,2,5,10
11: 1,11
12: 1,2,3,4,6,12
13: 1,13
14: 1,2,7,14
15: 1,3,5,15
16: 1,2,4,8,16
17: 1,17
18: 1,2,3,6,9,18
19: 1,19
20: 1,2,4,5,10,20
21: 1,3,7,21
22: 1,2,11,22
23: 1,23
24: 1,2,3,4,6,8,12,24
25: 1,5,25
26: 1,2,13,26
27: 1,3,9,27
28: 1,2,4,7,14,28
29: 1,29
30: 1,2,3,5,6,10,15,30
31: 1,31
32: 1,2,4,8,16,32
33: 1,3,11,33
34: 1,2,17,34
35: 1,5,7,35
36: 1,2,3,4,6,9,12,18,36 37: 1,37
38: 1,2,19,38
39: 1,3,13,39
40: 1,2,4,5,8,10,20,40
41: 1,41
42: 1,2,3,6,7,14,21,42
43: 1,43
44: 1,2,4,11,22,44
45: 1,3,5,9,15,45
46: 1,2,23,46
47: 1,47
48: 1,2,3,4,6,8,12,16,24,48 49: 1,7,
491,49,7
50: 1,2,5,10,25,50
51: 1,3,17,51
52: 1,2,4,13,26,52
53: 1,53
54: 1,2,3,6,9,18,27,54
55: 1,5,11,55
56: 1,2,4,7,8,14,28,56
57: 1,3,19,57
58: 1,2,29,58
59: 1,59
60: 1,2,3,4,5,6,10,12,15,20,30,60
61: 1,61
62: 1,2,31,62
63: 1,3,7,9,21,63
64: 1,2,4,8,16,32,64
65: 1,5,13,65
66: 1,2,3,6,11,22,33,66
67: 1,67
68: 1,2,4,17,34,68
69: 1,3,23,69
70: 1,2,5,7,10,14,35,70
71: 1,71
72: 1,2,3,4,6,8,9,12,18,24,36,72 73: 1,
73:1,73
74: 1,2,37,74
75: 1,3,5,15,25,75
76: 1,2,4,19,38,76
77: 1,7,11,77
78: 1,2,3,6,13,26,39,78
79: 1,79
80: 1,2,4,5,8,10,16,20,40,80 81: 1,3,
9,27,81
82: 1,2,41,82
83: 1,83
84: 1,2,3,4,6,7,12,14,21,28,42,84 85: 1,
5,17,85
86: 1,2,43,86
87: 1,3,29,87
88: 1,2,4,8,11,22,44,88
89: 1,89
90: 1,2,3,5,6,9,10,15,18,30,45,90
91: 1,7,13,91
92: 1,2,4,23,46,92
93: 1,3,31,93
94: 1,2,47,94
95: 1,5,19,95
96: 1,2,3,4,6,8,12,16,24,32,48,96 97: 1,
97:1, 97
98: 1,2,7,14,49,98
99: 1,3,9,11,33,99
100: 1,2,4,5,10,20,25,50,100
热心网友
时间:2023-10-22 21:08
1到100的因数如下:
1: 1
2: 1,2
3: 1,3
4: 1,2,4
5: 1,5
6: 1,2,3,6
7: 1,7
8: 1,2,4,8
9: 1,3,9
10: 1,2,5,10
11: 1,11
12: 1,2,3,4,6,12
13: 1,13
14: 1,2,7,14
15: 1,3,5,15
16: 1,2,4,8,16
17: 1,17
18: 1,2,3,6,9,18
19: 1,19
20: 1,2,4,5,10,20
21: 1,3,7,21
22: 1,2,11,22
23: 1,23
24: 1,2,3,4,6,8,12,24
25: 1,5,25
26: 1,2,13,26
27: 1,3,9,27
28: 1,2,4,7,14,28
29: 1,29
30: 1,2,3,5,6,10,15,30
31: 1,31
32: 1,2,4,8,16,32
33: 1,3,11,33
34: 1,2,17,34
35: 1,5,7,35
36: 1,2,3,4,6,9,12,18,36 37: 1,37
38: 1,2,19,38
39: 1,3,13,39
40: 1,2,4,5,8,10,20,40
41: 1,41
42: 1,2,3,6,7,14,21,42
43: 1,43
44: 1,2,4,11,22,44
45: 1,3,5,9,15,45
46: 1,2,23,46
47: 1,47
48: 1,2,3,4,6,8,12,16,24,48 49: 1,7,
491,49,7
50: 1,2,5,10,25,50
51: 1,3,17,51
52: 1,2,4,13,26,52
53: 1,53
54: 1,2,3,6,9,18,27,54
55: 1,5,11,55
56: 1,2,4,7,8,14,28,56
57: 1,3,19,57
58: 1,2,29,58
59: 1,59
60: 1,2,3,4,5,6,10,12,15,20,30,60
61: 1,61
62: 1,2,31,62
63: 1,3,7,9,21,63
64: 1,2,4,8,16,32,64
65: 1,5,13,65
66: 1,2,3,6,11,22,33,66
67: 1,67
68: 1,2,4,17,34,68
69: 1,3
热心网友
时间:2023-10-22 21:08
100以内的质数共有25个,这些质数我们经常用到,可以用下面的两种办法记住它们。
?
一、规律记忆法
?
首先记住2和3,而2和3两个质数的乘积为6。100以内的质数,一般都在6的倍数前、后的位置上。如5、7、11、13、19、23、29、31、37、41、43……只有25、35、49、55、65、77、85、91、95这几个6的倍数前后位置上的数不是质数,而这几个数都是5或7的倍数。由此可知:100以内6的倍数前、后位置上的两个数,只要不是5或7的倍数,就一定是质数。根据这个特点可以记住100以内的质数。
?
二、分类记忆法
?
我们可以把100以内的质数分为五类记忆。
?第一类:20以内的质数,共8个:2、3、5、7、11、13、17、19。
?第二类:个位数字是3或9,十位数字相差3的质数,共6个:23、29、53、59、83、89。
?第三类:个位数字是1或7,十位数字相差3的质数,共4个:31、37、61、67。
?第四类:个位数字是1、3或7,十位数字相差3的质数,共5个:41、43、47、71、73。
?第五类:还有2个持数是79和97。
?
一种简便的试商方法
?
试商是计算除数是三位数除法的关键,当除数接近整百数时,可以用“四舍五入法”来试商,然而当除数十位上是4、5、6不接近整百数时,试商就比较困难,有时需要多次调商。为了帮助同学们解决这个困难,下面介绍一种简便的试商方法。
?
当除数十位上是4时,舍去尾数看做整百数。用整百数做除数得出的商减1后去试商。
?
命名如1944÷243,除数十位上是4,把243看做200,1944÷200商9,用8(9-1)去试商正合适。
?
当除数十位上是5、6时,舍去尾数向百位进1,把除数看做整百数,用整百数做除数得出的商加1后去试商。
?
例如:1524÷254除数十位上是5,把254看做300,1524÷300商5,用6(5+1)去试商正合适。
?
运用上面这种试商方法,有的可以直接得出准确商,有的只需调商一次就行了。同学们不试在计算除法时试一试。