A:
Positive:
1 x 2857507913 x 219808317 x 1680887221 x 129299239 x 119561541 x 528193107 x 91974063 x 7033
Negative:
-1 x -28575079-13 x -2198083-17 x -1680887-221 x -129299-239 x -119561-541 x -52819-3107 x -9197-4063 x -7033
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 28,575,079, 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 | 28,575,079 | |
| -1 | -28,575,079 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,575,079.
Example:
1 x 28,575,079 = 28,575,079
and
-1 x -28,575,079 = 28,575,079
Notice both answers equal 28,575,079
With that explanation out of the way, let's continue. Next, we take the number 28,575,079 and divide it by 2:
28,575,079 ÷ 2 = 14,287,539.5
If the quotient is a whole number, then 2 and 14,287,539.5 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 | 28,575,079 | |
| -1 | -28,575,079 |
Now, we try dividing 28,575,079 by 3:
28,575,079 ÷ 3 = 9,525,026.3333
If the quotient is a whole number, then 3 and 9,525,026.3333 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 | 28,575,079 | |
| -1 | -28,575,079 |
Let's try dividing by 4:
28,575,079 ÷ 4 = 7,143,769.75
If the quotient is a whole number, then 4 and 7,143,769.75 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 | 28,575,079 | |
| -1 | 28,575,079 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 221 | 239 | 541 | 3,107 | 4,063 | 7,033 | 9,197 | 52,819 | 119,561 | 129,299 | 1,680,887 | 2,198,083 | 28,575,079 |
| -1 | -13 | -17 | -221 | -239 | -541 | -3,107 | -4,063 | -7,033 | -9,197 | -52,819 | -119,561 | -129,299 | -1,680,887 | -2,198,083 | -28,575,079 |
Here are some more numbers to try:
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