A:
Positive:
1 x 25403251913 x 1954096343 x 5907733169 x 1503151559 x 4544412197 x 1156272689 x 944717267 x 34957
Negative:
-1 x -254032519-13 x -19540963-43 x -5907733-169 x -1503151-559 x -454441-2197 x -115627-2689 x -94471-7267 x -34957
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 254,032,519, 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 | 254,032,519 | |
| -1 | -254,032,519 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,032,519.
Example:
1 x 254,032,519 = 254,032,519
and
-1 x -254,032,519 = 254,032,519
Notice both answers equal 254,032,519
With that explanation out of the way, let's continue. Next, we take the number 254,032,519 and divide it by 2:
254,032,519 ÷ 2 = 127,016,259.5
If the quotient is a whole number, then 2 and 127,016,259.5 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 | 254,032,519 | |
| -1 | -254,032,519 |
Now, we try dividing 254,032,519 by 3:
254,032,519 ÷ 3 = 84,677,506.3333
If the quotient is a whole number, then 3 and 84,677,506.3333 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 | 254,032,519 | |
| -1 | -254,032,519 |
Let's try dividing by 4:
254,032,519 ÷ 4 = 63,508,129.75
If the quotient is a whole number, then 4 and 63,508,129.75 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 | 254,032,519 | |
| -1 | 254,032,519 |
If you did it right, you will end up with this table:
| 1 | 13 | 43 | 169 | 559 | 2,197 | 2,689 | 7,267 | 34,957 | 94,471 | 115,627 | 454,441 | 1,503,151 | 5,907,733 | 19,540,963 | 254,032,519 |
| -1 | -13 | -43 | -169 | -559 | -2,197 | -2,689 | -7,267 | -34,957 | -94,471 | -115,627 | -454,441 | -1,503,151 | -5,907,733 | -19,540,963 | -254,032,519 |
Here are some more numbers to try:
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