A:
Positive:
1 x 284939417 x 407056323 x 123886749 x 581509131 x 217511161 x 176981193 x 147637917 x 310731127 x 252831351 x 210913013 x 94574439 x 6419
Negative:
-1 x -28493941-7 x -4070563-23 x -1238867-49 x -581509-131 x -217511-161 x -176981-193 x -147637-917 x -31073-1127 x -25283-1351 x -21091-3013 x -9457-4439 x -6419
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 28,493,941, 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 | 28,493,941 | |
| -1 | -28,493,941 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,493,941.
Example:
1 x 28,493,941 = 28,493,941
and
-1 x -28,493,941 = 28,493,941
Notice both answers equal 28,493,941
With that explanation out of the way, let's continue. Next, we take the number 28,493,941 and divide it by 2:
28,493,941 ÷ 2 = 14,246,970.5
If the quotient is a whole number, then 2 and 14,246,970.5 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 | 28,493,941 | |
| -1 | -28,493,941 |
Now, we try dividing 28,493,941 by 3:
28,493,941 ÷ 3 = 9,497,980.3333
If the quotient is a whole number, then 3 and 9,497,980.3333 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 | 28,493,941 | |
| -1 | -28,493,941 |
Let's try dividing by 4:
28,493,941 ÷ 4 = 7,123,485.25
If the quotient is a whole number, then 4 and 7,123,485.25 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 | 28,493,941 | |
| -1 | 28,493,941 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 49 | 131 | 161 | 193 | 917 | 1,127 | 1,351 | 3,013 | 4,439 | 6,419 | 9,457 | 21,091 | 25,283 | 31,073 | 147,637 | 176,981 | 217,511 | 581,509 | 1,238,867 | 4,070,563 | 28,493,941 |
| -1 | -7 | -23 | -49 | -131 | -161 | -193 | -917 | -1,127 | -1,351 | -3,013 | -4,439 | -6,419 | -9,457 | -21,091 | -25,283 | -31,073 | -147,637 | -176,981 | -217,511 | -581,509 | -1,238,867 | -4,070,563 | -28,493,941 |
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