A:
Positive:
1 x 2574646113 x 198049729 x 88780931 x 830531377 x 68293403 x 63887899 x 286392203 x 11687
Negative:
-1 x -25746461-13 x -1980497-29 x -887809-31 x -830531-377 x -68293-403 x -63887-899 x -28639-2203 x -11687
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 25,746,461, 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 | 25,746,461 | |
| -1 | -25,746,461 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,746,461.
Example:
1 x 25,746,461 = 25,746,461
and
-1 x -25,746,461 = 25,746,461
Notice both answers equal 25,746,461
With that explanation out of the way, let's continue. Next, we take the number 25,746,461 and divide it by 2:
25,746,461 ÷ 2 = 12,873,230.5
If the quotient is a whole number, then 2 and 12,873,230.5 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 | 25,746,461 | |
| -1 | -25,746,461 |
Now, we try dividing 25,746,461 by 3:
25,746,461 ÷ 3 = 8,582,153.6667
If the quotient is a whole number, then 3 and 8,582,153.6667 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 | 25,746,461 | |
| -1 | -25,746,461 |
Let's try dividing by 4:
25,746,461 ÷ 4 = 6,436,615.25
If the quotient is a whole number, then 4 and 6,436,615.25 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 | 25,746,461 | |
| -1 | 25,746,461 |
If you did it right, you will end up with this table:
| 1 | 13 | 29 | 31 | 377 | 403 | 899 | 2,203 | 11,687 | 28,639 | 63,887 | 68,293 | 830,531 | 887,809 | 1,980,497 | 25,746,461 |
| -1 | -13 | -29 | -31 | -377 | -403 | -899 | -2,203 | -11,687 | -28,639 | -63,887 | -68,293 | -830,531 | -887,809 | -1,980,497 | -25,746,461 |
Here are some more numbers to try:
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