A:
Positive:
1 x 250244155 x 500488313 x 192495565 x 384991113 x 221455565 x 442911469 x 170353407 x 7345
Negative:
-1 x -25024415-5 x -5004883-13 x -1924955-65 x -384991-113 x -221455-565 x -44291-1469 x -17035-3407 x -7345
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 25,024,415, 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 | 25,024,415 | |
| -1 | -25,024,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,024,415.
Example:
1 x 25,024,415 = 25,024,415
and
-1 x -25,024,415 = 25,024,415
Notice both answers equal 25,024,415
With that explanation out of the way, let's continue. Next, we take the number 25,024,415 and divide it by 2:
25,024,415 ÷ 2 = 12,512,207.5
If the quotient is a whole number, then 2 and 12,512,207.5 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 | 25,024,415 | |
| -1 | -25,024,415 |
Now, we try dividing 25,024,415 by 3:
25,024,415 ÷ 3 = 8,341,471.6667
If the quotient is a whole number, then 3 and 8,341,471.6667 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 | 25,024,415 | |
| -1 | -25,024,415 |
Let's try dividing by 4:
25,024,415 ÷ 4 = 6,256,103.75
If the quotient is a whole number, then 4 and 6,256,103.75 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 | 25,024,415 | |
| -1 | 25,024,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 113 | 565 | 1,469 | 3,407 | 7,345 | 17,035 | 44,291 | 221,455 | 384,991 | 1,924,955 | 5,004,883 | 25,024,415 |
| -1 | -5 | -13 | -65 | -113 | -565 | -1,469 | -3,407 | -7,345 | -17,035 | -44,291 | -221,455 | -384,991 | -1,924,955 | -5,004,883 | -25,024,415 |
Here are some more numbers to try:
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