A:
Positive:
1 x 280562755 x 561125513 x 215817525 x 112225165 x 431635173 x 162175325 x 86327499 x 56225865 x 324352249 x 124752495 x 112454325 x 6487
Negative:
-1 x -28056275-5 x -5611255-13 x -2158175-25 x -1122251-65 x -431635-173 x -162175-325 x -86327-499 x -56225-865 x -32435-2249 x -12475-2495 x -11245-4325 x -6487
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 28,056,275, 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 | 28,056,275 | |
| -1 | -28,056,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,056,275.
Example:
1 x 28,056,275 = 28,056,275
and
-1 x -28,056,275 = 28,056,275
Notice both answers equal 28,056,275
With that explanation out of the way, let's continue. Next, we take the number 28,056,275 and divide it by 2:
28,056,275 ÷ 2 = 14,028,137.5
If the quotient is a whole number, then 2 and 14,028,137.5 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 | 28,056,275 | |
| -1 | -28,056,275 |
Now, we try dividing 28,056,275 by 3:
28,056,275 ÷ 3 = 9,352,091.6667
If the quotient is a whole number, then 3 and 9,352,091.6667 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 | 28,056,275 | |
| -1 | -28,056,275 |
Let's try dividing by 4:
28,056,275 ÷ 4 = 7,014,068.75
If the quotient is a whole number, then 4 and 7,014,068.75 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 | 28,056,275 | |
| -1 | 28,056,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 173 | 325 | 499 | 865 | 2,249 | 2,495 | 4,325 | 6,487 | 11,245 | 12,475 | 32,435 | 56,225 | 86,327 | 162,175 | 431,635 | 1,122,251 | 2,158,175 | 5,611,255 | 28,056,275 |
| -1 | -5 | -13 | -25 | -65 | -173 | -325 | -499 | -865 | -2,249 | -2,495 | -4,325 | -6,487 | -11,245 | -12,475 | -32,435 | -56,225 | -86,327 | -162,175 | -431,635 | -1,122,251 | -2,158,175 | -5,611,255 | -28,056,275 |
Here are some more numbers to try:
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