A:
Positive:
1 x 2510463355 x 5020926719 x 1321296595 x 2642593137 x 1832455685 x 3664912603 x 9644513015 x 19289
Negative:
-1 x -251046335-5 x -50209267-19 x -13212965-95 x -2642593-137 x -1832455-685 x -366491-2603 x -96445-13015 x -19289
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 251,046,335, 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 | 251,046,335 | |
| -1 | -251,046,335 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 251,046,335.
Example:
1 x 251,046,335 = 251,046,335
and
-1 x -251,046,335 = 251,046,335
Notice both answers equal 251,046,335
With that explanation out of the way, let's continue. Next, we take the number 251,046,335 and divide it by 2:
251,046,335 ÷ 2 = 125,523,167.5
If the quotient is a whole number, then 2 and 125,523,167.5 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 | 251,046,335 | |
| -1 | -251,046,335 |
Now, we try dividing 251,046,335 by 3:
251,046,335 ÷ 3 = 83,682,111.6667
If the quotient is a whole number, then 3 and 83,682,111.6667 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 | 251,046,335 | |
| -1 | -251,046,335 |
Let's try dividing by 4:
251,046,335 ÷ 4 = 62,761,583.75
If the quotient is a whole number, then 4 and 62,761,583.75 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 | 251,046,335 | |
| -1 | 251,046,335 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 137 | 685 | 2,603 | 13,015 | 19,289 | 96,445 | 366,491 | 1,832,455 | 2,642,593 | 13,212,965 | 50,209,267 | 251,046,335 |
| -1 | -5 | -19 | -95 | -137 | -685 | -2,603 | -13,015 | -19,289 | -96,445 | -366,491 | -1,832,455 | -2,642,593 | -13,212,965 | -50,209,267 | -251,046,335 |
Here are some more numbers to try:
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