A:
Positive:
1 x 2862801255 x 5725602519 x 1506737525 x 1145120595 x 3013475125 x 2290241475 x 6026952375 x 120539
Negative:
-1 x -286280125-5 x -57256025-19 x -15067375-25 x -11451205-95 x -3013475-125 x -2290241-475 x -602695-2375 x -120539
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 286,280,125, 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 | 286,280,125 | |
| -1 | -286,280,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 286,280,125.
Example:
1 x 286,280,125 = 286,280,125
and
-1 x -286,280,125 = 286,280,125
Notice both answers equal 286,280,125
With that explanation out of the way, let's continue. Next, we take the number 286,280,125 and divide it by 2:
286,280,125 ÷ 2 = 143,140,062.5
If the quotient is a whole number, then 2 and 143,140,062.5 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 | 286,280,125 | |
| -1 | -286,280,125 |
Now, we try dividing 286,280,125 by 3:
286,280,125 ÷ 3 = 95,426,708.3333
If the quotient is a whole number, then 3 and 95,426,708.3333 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 | 286,280,125 | |
| -1 | -286,280,125 |
Let's try dividing by 4:
286,280,125 ÷ 4 = 71,570,031.25
If the quotient is a whole number, then 4 and 71,570,031.25 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 | 286,280,125 | |
| -1 | 286,280,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 125 | 475 | 2,375 | 120,539 | 602,695 | 2,290,241 | 3,013,475 | 11,451,205 | 15,067,375 | 57,256,025 | 286,280,125 |
| -1 | -5 | -19 | -25 | -95 | -125 | -475 | -2,375 | -120,539 | -602,695 | -2,290,241 | -3,013,475 | -11,451,205 | -15,067,375 | -57,256,025 | -286,280,125 |
Here are some more numbers to try:
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