A:
Positive:
1 x 25360042767 x 378508171 x 357183789 x 2849443599 x 4233734757 x 533115963 x 425296319 x 40133
Negative:
-1 x -253600427-67 x -3785081-71 x -3571837-89 x -2849443-599 x -423373-4757 x -53311-5963 x -42529-6319 x -40133
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 253,600,427, 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 | 253,600,427 | |
| -1 | -253,600,427 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 253,600,427.
Example:
1 x 253,600,427 = 253,600,427
and
-1 x -253,600,427 = 253,600,427
Notice both answers equal 253,600,427
With that explanation out of the way, let's continue. Next, we take the number 253,600,427 and divide it by 2:
253,600,427 ÷ 2 = 126,800,213.5
If the quotient is a whole number, then 2 and 126,800,213.5 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 | 253,600,427 | |
| -1 | -253,600,427 |
Now, we try dividing 253,600,427 by 3:
253,600,427 ÷ 3 = 84,533,475.6667
If the quotient is a whole number, then 3 and 84,533,475.6667 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 | 253,600,427 | |
| -1 | -253,600,427 |
Let's try dividing by 4:
253,600,427 ÷ 4 = 63,400,106.75
If the quotient is a whole number, then 4 and 63,400,106.75 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 | 253,600,427 | |
| -1 | 253,600,427 |
If you did it right, you will end up with this table:
| 1 | 67 | 71 | 89 | 599 | 4,757 | 5,963 | 6,319 | 40,133 | 42,529 | 53,311 | 423,373 | 2,849,443 | 3,571,837 | 3,785,081 | 253,600,427 |
| -1 | -67 | -71 | -89 | -599 | -4,757 | -5,963 | -6,319 | -40,133 | -42,529 | -53,311 | -423,373 | -2,849,443 | -3,571,837 | -3,785,081 | -253,600,427 |
Here are some more numbers to try:
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