A:
Positive:
1 x 256514455 x 513028941 x 625645157 x 163385205 x 125129785 x 32677797 x 321853985 x 6437
Negative:
-1 x -25651445-5 x -5130289-41 x -625645-157 x -163385-205 x -125129-785 x -32677-797 x -32185-3985 x -6437
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 25,651,445, 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 | 25,651,445 | |
| -1 | -25,651,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,651,445.
Example:
1 x 25,651,445 = 25,651,445
and
-1 x -25,651,445 = 25,651,445
Notice both answers equal 25,651,445
With that explanation out of the way, let's continue. Next, we take the number 25,651,445 and divide it by 2:
25,651,445 ÷ 2 = 12,825,722.5
If the quotient is a whole number, then 2 and 12,825,722.5 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 | 25,651,445 | |
| -1 | -25,651,445 |
Now, we try dividing 25,651,445 by 3:
25,651,445 ÷ 3 = 8,550,481.6667
If the quotient is a whole number, then 3 and 8,550,481.6667 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 | 25,651,445 | |
| -1 | -25,651,445 |
Let's try dividing by 4:
25,651,445 ÷ 4 = 6,412,861.25
If the quotient is a whole number, then 4 and 6,412,861.25 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 | 25,651,445 | |
| -1 | 25,651,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 157 | 205 | 785 | 797 | 3,985 | 6,437 | 32,185 | 32,677 | 125,129 | 163,385 | 625,645 | 5,130,289 | 25,651,445 |
| -1 | -5 | -41 | -157 | -205 | -785 | -797 | -3,985 | -6,437 | -32,185 | -32,677 | -125,129 | -163,385 | -625,645 | -5,130,289 | -25,651,445 |
Here are some more numbers to try:
Try the factor calculator