A:
Positive:
1 x 251166655 x 50233337 x 358809531 x 81021535 x 71761949 x 512585155 x 162043217 x 115745245 x 1025171085 x 231491519 x 165353307 x 7595
Negative:
-1 x -25116665-5 x -5023333-7 x -3588095-31 x -810215-35 x -717619-49 x -512585-155 x -162043-217 x -115745-245 x -102517-1085 x -23149-1519 x -16535-3307 x -7595
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 25,116,665, 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 | 25,116,665 | |
| -1 | -25,116,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,116,665.
Example:
1 x 25,116,665 = 25,116,665
and
-1 x -25,116,665 = 25,116,665
Notice both answers equal 25,116,665
With that explanation out of the way, let's continue. Next, we take the number 25,116,665 and divide it by 2:
25,116,665 ÷ 2 = 12,558,332.5
If the quotient is a whole number, then 2 and 12,558,332.5 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 | 25,116,665 | |
| -1 | -25,116,665 |
Now, we try dividing 25,116,665 by 3:
25,116,665 ÷ 3 = 8,372,221.6667
If the quotient is a whole number, then 3 and 8,372,221.6667 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 | 25,116,665 | |
| -1 | -25,116,665 |
Let's try dividing by 4:
25,116,665 ÷ 4 = 6,279,166.25
If the quotient is a whole number, then 4 and 6,279,166.25 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 | 25,116,665 | |
| -1 | 25,116,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 49 | 155 | 217 | 245 | 1,085 | 1,519 | 3,307 | 7,595 | 16,535 | 23,149 | 102,517 | 115,745 | 162,043 | 512,585 | 717,619 | 810,215 | 3,588,095 | 5,023,333 | 25,116,665 |
| -1 | -5 | -7 | -31 | -35 | -49 | -155 | -217 | -245 | -1,085 | -1,519 | -3,307 | -7,595 | -16,535 | -23,149 | -102,517 | -115,745 | -162,043 | -512,585 | -717,619 | -810,215 | -3,588,095 | -5,023,333 | -25,116,665 |
Here are some more numbers to try:
Try the factor calculator