A:
Positive:
1 x 13213555 x 2642717 x 18876519 x 6954535 x 3775395 x 13909133 x 9935665 x 1987
Negative:
-1 x -1321355-5 x -264271-7 x -188765-19 x -69545-35 x -37753-95 x -13909-133 x -9935-665 x -1987
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 1,321,355, 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 | 1,321,355 | |
| -1 | -1,321,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,321,355.
Example:
1 x 1,321,355 = 1,321,355
and
-1 x -1,321,355 = 1,321,355
Notice both answers equal 1,321,355
With that explanation out of the way, let's continue. Next, we take the number 1,321,355 and divide it by 2:
1,321,355 ÷ 2 = 660,677.5
If the quotient is a whole number, then 2 and 660,677.5 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 | 1,321,355 | |
| -1 | -1,321,355 |
Now, we try dividing 1,321,355 by 3:
1,321,355 ÷ 3 = 440,451.6667
If the quotient is a whole number, then 3 and 440,451.6667 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 | 1,321,355 | |
| -1 | -1,321,355 |
Let's try dividing by 4:
1,321,355 ÷ 4 = 330,338.75
If the quotient is a whole number, then 4 and 330,338.75 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 | 1,321,355 | |
| -1 | 1,321,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 665 | 1,987 | 9,935 | 13,909 | 37,753 | 69,545 | 188,765 | 264,271 | 1,321,355 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -665 | -1,987 | -9,935 | -13,909 | -37,753 | -69,545 | -188,765 | -264,271 | -1,321,355 |
Here are some more numbers to try:
Try the factor calculator