A:
Positive:
1 x 31376455 x 6275297 x 44823535 x 89647157 x 19985571 x 5495785 x 39971099 x 2855
Negative:
-1 x -3137645-5 x -627529-7 x -448235-35 x -89647-157 x -19985-571 x -5495-785 x -3997-1099 x -2855
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 3,137,645, 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 | 3,137,645 | |
| -1 | -3,137,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,137,645.
Example:
1 x 3,137,645 = 3,137,645
and
-1 x -3,137,645 = 3,137,645
Notice both answers equal 3,137,645
With that explanation out of the way, let's continue. Next, we take the number 3,137,645 and divide it by 2:
3,137,645 ÷ 2 = 1,568,822.5
If the quotient is a whole number, then 2 and 1,568,822.5 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 | 3,137,645 | |
| -1 | -3,137,645 |
Now, we try dividing 3,137,645 by 3:
3,137,645 ÷ 3 = 1,045,881.6667
If the quotient is a whole number, then 3 and 1,045,881.6667 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 | 3,137,645 | |
| -1 | -3,137,645 |
Let's try dividing by 4:
3,137,645 ÷ 4 = 784,411.25
If the quotient is a whole number, then 4 and 784,411.25 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 | 3,137,645 | |
| -1 | 3,137,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 157 | 571 | 785 | 1,099 | 2,855 | 3,997 | 5,495 | 19,985 | 89,647 | 448,235 | 627,529 | 3,137,645 |
| -1 | -5 | -7 | -35 | -157 | -571 | -785 | -1,099 | -2,855 | -3,997 | -5,495 | -19,985 | -89,647 | -448,235 | -627,529 | -3,137,645 |
Here are some more numbers to try:
Try the factor calculator