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प्रश्न
Without making any actual division, show that each of the following numbers is divisible by 11.
11000011
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उत्तर
= 11000000+ 11
= 11 x (1000000+ 1)
= 11 x 1000001
Clearly, 110000 is divisible by 11.
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संबंधित प्रश्न
Write two numbers which differ by 3 and whose product is 54.
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Find whether the following number is divisible by 2: 496
Find whether the following number is divisible by 9: 4968
Find whether the following number is divisible by 6: 15505
Find whether the following number is divisible by 10: 9990
Find whether the following number is divisible by 11: 68717
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In the following number, replace M by the smallest number to make resulting number divisible by 11: 3M422
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21
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Look at the green boxes in the chart. These show how we can get 12 by multiplying different numbers.
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What is the biggest number for which you can find the factors from this chart?
In how many ways can you draw a factor tree for 24? Draw three of them below.
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|
|
Column 1 |
|
Column 2 |
|
(i) |
35 |
(a) |
Multiple of 8 |
|
(ii) |
15 |
(b) |
Multiple of 7 |
|
(iii) |
16 |
(c) |
Multiple of 70 |
|
(iv) |
20 |
(d) |
Factor of 30 |
|
(v) |
25 |
(e) |
Factor of 50 |
|
|
|
(f) |
Factor of 20 |
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What is a factor of a number?
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