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Playing With Numbers

Question 1:

Using divisibility 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):

Number

Divisible by

2

3

4

5

6

8

9

10

11

128

Yes

No

Yes

No

No

Yes

No

No

No

990

1586

275

6686

639210

429714

2856

3060

406839

Answer:

Numbers

2

3

4

5

6

8

9

10

11

990

Yes

Yes

No

Yes

Yes

No

Yes

Yes

Yes

1586

Yes

No

No

No

No

No

No

No

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