A:
Positive:
1 x 2452455 x 490497 x 3503511 x 2229513 x 1886535 x 700749 x 500555 x 445965 x 377377 x 318591 x 2695143 x 1715245 x 1001343 x 715385 x 637455 x 539
Negative:
-1 x -245245-5 x -49049-7 x -35035-11 x -22295-13 x -18865-35 x -7007-49 x -5005-55 x -4459-65 x -3773-77 x -3185-91 x -2695-143 x -1715-245 x -1001-343 x -715-385 x -637-455 x -539
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 245,245, 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 | 245,245 | |
| -1 | -245,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 245,245.
Example:
1 x 245,245 = 245,245
and
-1 x -245,245 = 245,245
Notice both answers equal 245,245
With that explanation out of the way, let's continue. Next, we take the number 245,245 and divide it by 2:
245,245 ÷ 2 = 122,622.5
If the quotient is a whole number, then 2 and 122,622.5 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 | 245,245 | |
| -1 | -245,245 |
Now, we try dividing 245,245 by 3:
245,245 ÷ 3 = 81,748.3333
If the quotient is a whole number, then 3 and 81,748.3333 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 | 245,245 | |
| -1 | -245,245 |
Let's try dividing by 4:
245,245 ÷ 4 = 61,311.25
If the quotient is a whole number, then 4 and 61,311.25 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 | 245,245 | |
| -1 | 245,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 13 | 35 | 49 | 55 | 65 | 77 | 91 | 143 | 245 | 343 | 385 | 455 | 539 | 637 | 715 | 1,001 | 1,715 | 2,695 | 3,185 | 3,773 | 4,459 | 5,005 | 7,007 | 18,865 | 22,295 | 35,035 | 49,049 | 245,245 |
| -1 | -5 | -7 | -11 | -13 | -35 | -49 | -55 | -65 | -77 | -91 | -143 | -245 | -343 | -385 | -455 | -539 | -637 | -715 | -1,001 | -1,715 | -2,695 | -3,185 | -3,773 | -4,459 | -5,005 | -7,007 | -18,865 | -22,295 | -35,035 | -49,049 | -245,245 |
Here are some more numbers to try:
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