A:
Positive:
1 x 132300255 x 264600525 x 52920131 x 42677543 x 307675155 x 85355215 x 61535397 x 33325775 x 170711075 x 123071333 x 99251985 x 6665
Negative:
-1 x -13230025-5 x -2646005-25 x -529201-31 x -426775-43 x -307675-155 x -85355-215 x -61535-397 x -33325-775 x -17071-1075 x -12307-1333 x -9925-1985 x -6665
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 13,230,025, 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 | 13,230,025 | |
| -1 | -13,230,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,230,025.
Example:
1 x 13,230,025 = 13,230,025
and
-1 x -13,230,025 = 13,230,025
Notice both answers equal 13,230,025
With that explanation out of the way, let's continue. Next, we take the number 13,230,025 and divide it by 2:
13,230,025 ÷ 2 = 6,615,012.5
If the quotient is a whole number, then 2 and 6,615,012.5 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 | 13,230,025 | |
| -1 | -13,230,025 |
Now, we try dividing 13,230,025 by 3:
13,230,025 ÷ 3 = 4,410,008.3333
If the quotient is a whole number, then 3 and 4,410,008.3333 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 | 13,230,025 | |
| -1 | -13,230,025 |
Let's try dividing by 4:
13,230,025 ÷ 4 = 3,307,506.25
If the quotient is a whole number, then 4 and 3,307,506.25 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 | 13,230,025 | |
| -1 | 13,230,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 31 | 43 | 155 | 215 | 397 | 775 | 1,075 | 1,333 | 1,985 | 6,665 | 9,925 | 12,307 | 17,071 | 33,325 | 61,535 | 85,355 | 307,675 | 426,775 | 529,201 | 2,646,005 | 13,230,025 |
| -1 | -5 | -25 | -31 | -43 | -155 | -215 | -397 | -775 | -1,075 | -1,333 | -1,985 | -6,665 | -9,925 | -12,307 | -17,071 | -33,325 | -61,535 | -85,355 | -307,675 | -426,775 | -529,201 | -2,646,005 | -13,230,025 |
Here are some more numbers to try:
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