A:
Positive:
1 x 288652855 x 577305747 x 614155113 x 255445235 x 122831565 x 510891087 x 265555311 x 5435
Negative:
-1 x -28865285-5 x -5773057-47 x -614155-113 x -255445-235 x -122831-565 x -51089-1087 x -26555-5311 x -5435
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 28,865,285, 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 | 28,865,285 | |
| -1 | -28,865,285 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,865,285.
Example:
1 x 28,865,285 = 28,865,285
and
-1 x -28,865,285 = 28,865,285
Notice both answers equal 28,865,285
With that explanation out of the way, let's continue. Next, we take the number 28,865,285 and divide it by 2:
28,865,285 ÷ 2 = 14,432,642.5
If the quotient is a whole number, then 2 and 14,432,642.5 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 | 28,865,285 | |
| -1 | -28,865,285 |
Now, we try dividing 28,865,285 by 3:
28,865,285 ÷ 3 = 9,621,761.6667
If the quotient is a whole number, then 3 and 9,621,761.6667 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 | 28,865,285 | |
| -1 | -28,865,285 |
Let's try dividing by 4:
28,865,285 ÷ 4 = 7,216,321.25
If the quotient is a whole number, then 4 and 7,216,321.25 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 | 28,865,285 | |
| -1 | 28,865,285 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 113 | 235 | 565 | 1,087 | 5,311 | 5,435 | 26,555 | 51,089 | 122,831 | 255,445 | 614,155 | 5,773,057 | 28,865,285 |
| -1 | -5 | -47 | -113 | -235 | -565 | -1,087 | -5,311 | -5,435 | -26,555 | -51,089 | -122,831 | -255,445 | -614,155 | -5,773,057 | -28,865,285 |
Here are some more numbers to try:
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