A:
Positive:
1 x 310371555 x 620743117 x 182571547 x 66036585 x 365143235 x 132073289 x 107395457 x 67915799 x 388451445 x 214792285 x 135833995 x 7769
Negative:
-1 x -31037155-5 x -6207431-17 x -1825715-47 x -660365-85 x -365143-235 x -132073-289 x -107395-457 x -67915-799 x -38845-1445 x -21479-2285 x -13583-3995 x -7769
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 31,037,155, 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 | 31,037,155 | |
| -1 | -31,037,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,037,155.
Example:
1 x 31,037,155 = 31,037,155
and
-1 x -31,037,155 = 31,037,155
Notice both answers equal 31,037,155
With that explanation out of the way, let's continue. Next, we take the number 31,037,155 and divide it by 2:
31,037,155 ÷ 2 = 15,518,577.5
If the quotient is a whole number, then 2 and 15,518,577.5 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 | 31,037,155 | |
| -1 | -31,037,155 |
Now, we try dividing 31,037,155 by 3:
31,037,155 ÷ 3 = 10,345,718.3333
If the quotient is a whole number, then 3 and 10,345,718.3333 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 | 31,037,155 | |
| -1 | -31,037,155 |
Let's try dividing by 4:
31,037,155 ÷ 4 = 7,759,288.75
If the quotient is a whole number, then 4 and 7,759,288.75 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 | 31,037,155 | |
| -1 | 31,037,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 47 | 85 | 235 | 289 | 457 | 799 | 1,445 | 2,285 | 3,995 | 7,769 | 13,583 | 21,479 | 38,845 | 67,915 | 107,395 | 132,073 | 365,143 | 660,365 | 1,825,715 | 6,207,431 | 31,037,155 |
| -1 | -5 | -17 | -47 | -85 | -235 | -289 | -457 | -799 | -1,445 | -2,285 | -3,995 | -7,769 | -13,583 | -21,479 | -38,845 | -67,915 | -107,395 | -132,073 | -365,143 | -660,365 | -1,825,715 | -6,207,431 | -31,037,155 |
Here are some more numbers to try:
Try the factor calculator