A:
Positive:
1 x 510157555 x 102031517 x 728796535 x 1457593181 x 281855905 x 563711267 x 402656335 x 8053
Negative:
-1 x -51015755-5 x -10203151-7 x -7287965-35 x -1457593-181 x -281855-905 x -56371-1267 x -40265-6335 x -8053
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 51,015,755, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 51,015,755 | |
| -1 | -51,015,755 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,015,755.
Example:
1 x 51,015,755 = 51,015,755
and
-1 x -51,015,755 = 51,015,755
Notice both answers equal 51,015,755
With that explanation out of the way, let's continue. Next, we take the number 51,015,755 and divide it by 2:
51,015,755 ÷ 2 = 25,507,877.5
If the quotient is a whole number, then 2 and 25,507,877.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 51,015,755 | |
| -1 | -51,015,755 |
Now, we try dividing 51,015,755 by 3:
51,015,755 ÷ 3 = 17,005,251.6667
If the quotient is a whole number, then 3 and 17,005,251.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 51,015,755 | |
| -1 | -51,015,755 |
Let's try dividing by 4:
51,015,755 ÷ 4 = 12,753,938.75
If the quotient is a whole number, then 4 and 12,753,938.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 51,015,755 | |
| -1 | 51,015,755 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 181 | 905 | 1,267 | 6,335 | 8,053 | 40,265 | 56,371 | 281,855 | 1,457,593 | 7,287,965 | 10,203,151 | 51,015,755 |
| -1 | -5 | -7 | -35 | -181 | -905 | -1,267 | -6,335 | -8,053 | -40,265 | -56,371 | -281,855 | -1,457,593 | -7,287,965 | -10,203,151 | -51,015,755 |
Here are some more numbers to try:
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