A:
Positive:
1 x 51312255 x 102624511 x 46647525 x 20524947 x 10917555 x 93295235 x 21835275 x 18659397 x 12925517 x 99251175 x 43671985 x 2585
Negative:
-1 x -5131225-5 x -1026245-11 x -466475-25 x -205249-47 x -109175-55 x -93295-235 x -21835-275 x -18659-397 x -12925-517 x -9925-1175 x -4367-1985 x -2585
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 5,131,225, 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 | 5,131,225 | |
| -1 | -5,131,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,131,225.
Example:
1 x 5,131,225 = 5,131,225
and
-1 x -5,131,225 = 5,131,225
Notice both answers equal 5,131,225
With that explanation out of the way, let's continue. Next, we take the number 5,131,225 and divide it by 2:
5,131,225 ÷ 2 = 2,565,612.5
If the quotient is a whole number, then 2 and 2,565,612.5 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 | 5,131,225 | |
| -1 | -5,131,225 |
Now, we try dividing 5,131,225 by 3:
5,131,225 ÷ 3 = 1,710,408.3333
If the quotient is a whole number, then 3 and 1,710,408.3333 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 | 5,131,225 | |
| -1 | -5,131,225 |
Let's try dividing by 4:
5,131,225 ÷ 4 = 1,282,806.25
If the quotient is a whole number, then 4 and 1,282,806.25 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 | 5,131,225 | |
| -1 | 5,131,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 47 | 55 | 235 | 275 | 397 | 517 | 1,175 | 1,985 | 2,585 | 4,367 | 9,925 | 12,925 | 18,659 | 21,835 | 93,295 | 109,175 | 205,249 | 466,475 | 1,026,245 | 5,131,225 |
| -1 | -5 | -11 | -25 | -47 | -55 | -235 | -275 | -397 | -517 | -1,175 | -1,985 | -2,585 | -4,367 | -9,925 | -12,925 | -18,659 | -21,835 | -93,295 | -109,175 | -205,249 | -466,475 | -1,026,245 | -5,131,225 |
Here are some more numbers to try:
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