A:
Positive:
1 x 5154225655 x 1030845137 x 7363179535 x 14726359751 x 6863153755 x 1372635257 x 9804519609 x 26285
Negative:
-1 x -515422565-5 x -103084513-7 x -73631795-35 x -14726359-751 x -686315-3755 x -137263-5257 x -98045-19609 x -26285
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 515,422,565, 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 | 515,422,565 | |
| -1 | -515,422,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 515,422,565.
Example:
1 x 515,422,565 = 515,422,565
and
-1 x -515,422,565 = 515,422,565
Notice both answers equal 515,422,565
With that explanation out of the way, let's continue. Next, we take the number 515,422,565 and divide it by 2:
515,422,565 ÷ 2 = 257,711,282.5
If the quotient is a whole number, then 2 and 257,711,282.5 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 | 515,422,565 | |
| -1 | -515,422,565 |
Now, we try dividing 515,422,565 by 3:
515,422,565 ÷ 3 = 171,807,521.6667
If the quotient is a whole number, then 3 and 171,807,521.6667 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 | 515,422,565 | |
| -1 | -515,422,565 |
Let's try dividing by 4:
515,422,565 ÷ 4 = 128,855,641.25
If the quotient is a whole number, then 4 and 128,855,641.25 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 | 515,422,565 | |
| -1 | 515,422,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 751 | 3,755 | 5,257 | 19,609 | 26,285 | 98,045 | 137,263 | 686,315 | 14,726,359 | 73,631,795 | 103,084,513 | 515,422,565 |
| -1 | -5 | -7 | -35 | -751 | -3,755 | -5,257 | -19,609 | -26,285 | -98,045 | -137,263 | -686,315 | -14,726,359 | -73,631,795 | -103,084,513 | -515,422,565 |
Here are some more numbers to try:
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