A:
Positive:
1 x 63115513937 x 1705824771 x 88895092627 x 240257
Negative:
-1 x -631155139-37 x -17058247-71 x -8889509-2627 x -240257
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 631,155,139, 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 | 631,155,139 | |
| -1 | -631,155,139 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 631,155,139.
Example:
1 x 631,155,139 = 631,155,139
and
-1 x -631,155,139 = 631,155,139
Notice both answers equal 631,155,139
With that explanation out of the way, let's continue. Next, we take the number 631,155,139 and divide it by 2:
631,155,139 ÷ 2 = 315,577,569.5
If the quotient is a whole number, then 2 and 315,577,569.5 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 | 631,155,139 | |
| -1 | -631,155,139 |
Now, we try dividing 631,155,139 by 3:
631,155,139 ÷ 3 = 210,385,046.3333
If the quotient is a whole number, then 3 and 210,385,046.3333 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 | 631,155,139 | |
| -1 | -631,155,139 |
Let's try dividing by 4:
631,155,139 ÷ 4 = 157,788,784.75
If the quotient is a whole number, then 4 and 157,788,784.75 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 | 631,155,139 | |
| -1 | 631,155,139 |
If you did it right, you will end up with this table:
| 1 | 37 | 71 | 2,627 | 240,257 | 8,889,509 | 17,058,247 | 631,155,139 |
| -1 | -37 | -71 | -2,627 | -240,257 | -8,889,509 | -17,058,247 | -631,155,139 |
Here are some more numbers to try:
Try the factor calculator