A:
Positive:
1 x 31728977 x 45327113 x 24406917 x 18664149 x 6475391 x 34867119 x 26663221 x 14357293 x 10829637 x 4981833 x 38091547 x 2051
Negative:
-1 x -3172897-7 x -453271-13 x -244069-17 x -186641-49 x -64753-91 x -34867-119 x -26663-221 x -14357-293 x -10829-637 x -4981-833 x -3809-1547 x -2051
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 3,172,897, 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 | 3,172,897 | |
| -1 | -3,172,897 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,172,897.
Example:
1 x 3,172,897 = 3,172,897
and
-1 x -3,172,897 = 3,172,897
Notice both answers equal 3,172,897
With that explanation out of the way, let's continue. Next, we take the number 3,172,897 and divide it by 2:
3,172,897 ÷ 2 = 1,586,448.5
If the quotient is a whole number, then 2 and 1,586,448.5 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 | 3,172,897 | |
| -1 | -3,172,897 |
Now, we try dividing 3,172,897 by 3:
3,172,897 ÷ 3 = 1,057,632.3333
If the quotient is a whole number, then 3 and 1,057,632.3333 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 | 3,172,897 | |
| -1 | -3,172,897 |
Let's try dividing by 4:
3,172,897 ÷ 4 = 793,224.25
If the quotient is a whole number, then 4 and 793,224.25 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 | 3,172,897 | |
| -1 | 3,172,897 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 17 | 49 | 91 | 119 | 221 | 293 | 637 | 833 | 1,547 | 2,051 | 3,809 | 4,981 | 10,829 | 14,357 | 26,663 | 34,867 | 64,753 | 186,641 | 244,069 | 453,271 | 3,172,897 |
| -1 | -7 | -13 | -17 | -49 | -91 | -119 | -221 | -293 | -637 | -833 | -1,547 | -2,051 | -3,809 | -4,981 | -10,829 | -14,357 | -26,663 | -34,867 | -64,753 | -186,641 | -244,069 | -453,271 | -3,172,897 |
Here are some more numbers to try:
Try the factor calculator