A:
Positive:
1 x 2167755 x 4335513 x 1667523 x 942525 x 867129 x 747565 x 3335115 x 1885145 x 1495299 x 725325 x 667377 x 575
Negative:
-1 x -216775-5 x -43355-13 x -16675-23 x -9425-25 x -8671-29 x -7475-65 x -3335-115 x -1885-145 x -1495-299 x -725-325 x -667-377 x -575
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 216,775, 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 | 216,775 | |
| -1 | -216,775 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 216,775.
Example:
1 x 216,775 = 216,775
and
-1 x -216,775 = 216,775
Notice both answers equal 216,775
With that explanation out of the way, let's continue. Next, we take the number 216,775 and divide it by 2:
216,775 ÷ 2 = 108,387.5
If the quotient is a whole number, then 2 and 108,387.5 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 | 216,775 | |
| -1 | -216,775 |
Now, we try dividing 216,775 by 3:
216,775 ÷ 3 = 72,258.3333
If the quotient is a whole number, then 3 and 72,258.3333 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 | 216,775 | |
| -1 | -216,775 |
Let's try dividing by 4:
216,775 ÷ 4 = 54,193.75
If the quotient is a whole number, then 4 and 54,193.75 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 | 216,775 | |
| -1 | 216,775 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 25 | 29 | 65 | 115 | 145 | 299 | 325 | 377 | 575 | 667 | 725 | 1,495 | 1,885 | 3,335 | 7,475 | 8,671 | 9,425 | 16,675 | 43,355 | 216,775 |
| -1 | -5 | -13 | -23 | -25 | -29 | -65 | -115 | -145 | -299 | -325 | -377 | -575 | -667 | -725 | -1,495 | -1,885 | -3,335 | -7,475 | -8,671 | -9,425 | -16,675 | -43,355 | -216,775 |
Here are some more numbers to try:
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