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Xander Hahn

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3y ago
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11y ago

It is quite simple when you note that the sum of the first n odd numbers is n2.

That is

1 = 1 = 12

1 + 3 = 4 = 22

1 + 3 + 5 = 9 = 32

It can be proven that this is always true (but not now).

So if you go to 100, you are adding to the 50th odd number.

And, therefore, the sum is 502 = 2500

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Q: How do you find the sum of all the odd numbers from 1-100?
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All nonzero numbers have factors. Some factors are odd numbers. 3 is an odd factor of 12.


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Yes, the factors of all odd numbers are odd numbers.


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To find the greatest odd factor of a number, you need to first determine all the factors of that number. Factors are the numbers that can be multiplied together to get the original number. Once you have listed all the factors, identify which ones are odd (not divisible by 2). Finally, select the largest odd factor from the list.


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You can't find five odd numbers that add up to fifty; the sum of five odd numbers will always be odd.


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