A:
Positive:
1 x 15969855 x 31939713 x 12284565 x 2456979 x 20215311 x 5135395 x 40431027 x 1555
Negative:
-1 x -1596985-5 x -319397-13 x -122845-65 x -24569-79 x -20215-311 x -5135-395 x -4043-1027 x -1555
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 1,596,985, 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 | 1,596,985 | |
| -1 | -1,596,985 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,596,985.
Example:
1 x 1,596,985 = 1,596,985
and
-1 x -1,596,985 = 1,596,985
Notice both answers equal 1,596,985
With that explanation out of the way, let's continue. Next, we take the number 1,596,985 and divide it by 2:
1,596,985 ÷ 2 = 798,492.5
If the quotient is a whole number, then 2 and 798,492.5 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 | 1,596,985 | |
| -1 | -1,596,985 |
Now, we try dividing 1,596,985 by 3:
1,596,985 ÷ 3 = 532,328.3333
If the quotient is a whole number, then 3 and 532,328.3333 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 | 1,596,985 | |
| -1 | -1,596,985 |
Let's try dividing by 4:
1,596,985 ÷ 4 = 399,246.25
If the quotient is a whole number, then 4 and 399,246.25 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 | 1,596,985 | |
| -1 | 1,596,985 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 79 | 311 | 395 | 1,027 | 1,555 | 4,043 | 5,135 | 20,215 | 24,569 | 122,845 | 319,397 | 1,596,985 |
| -1 | -5 | -13 | -65 | -79 | -311 | -395 | -1,027 | -1,555 | -4,043 | -5,135 | -20,215 | -24,569 | -122,845 | -319,397 | -1,596,985 |
Here are some more numbers to try:
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