Using pisibility tests, determine which of the following numbers are divisible by $2$; by $3$; by $4$; by $5$; by $6$; by $8$; by $9;$ by $10$; by $11$ $(say,\ yes\ or\ no):
"\n
Solution:
Numbers | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 |
128 | Yes | No | Yes
| No
| No
| Yes | No
| No
| No
|
990 | Yes
| Yes
| No | Yes | Yes | No
| Yes | Yes | Yes |
1586 | Yes
| No | No | No
| No
| No
| No
| No
| No |
275 | No | No | NO | Yes | No
| No
| No
| No
| Yes |
6686 | Yes
| No | No | No
| No
| No
| No
| No
| No |
639210 | Yes
| Yes
| No | Yes | Yes | No
| No
| Yes | Yes |
429714 | Yes
| Yes
| No | No
| Yes | No
| Yes | No
| No
|
2856 | Yes
| Yes
| Yes
| No
| Yes | Yes | No
| No
| No
|
3060 | Yes
| Yes
| Yes
| Yes | Yes | No
| Yes | Yes | No
|
406839 | No | Yes
| No | No
| No
| No
| No
| No
| No
|
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