A:
Positive:
1 x 15066317 x 21523331 x 4860153 x 28427131 x 11501217 x 6943371 x 4061917 x 1643
Negative:
-1 x -1506631-7 x -215233-31 x -48601-53 x -28427-131 x -11501-217 x -6943-371 x -4061-917 x -1643
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 1,506,631, 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 | 1,506,631 | |
| -1 | -1,506,631 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,506,631.
Example:
1 x 1,506,631 = 1,506,631
and
-1 x -1,506,631 = 1,506,631
Notice both answers equal 1,506,631
With that explanation out of the way, let's continue. Next, we take the number 1,506,631 and divide it by 2:
1,506,631 ÷ 2 = 753,315.5
If the quotient is a whole number, then 2 and 753,315.5 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 | 1,506,631 | |
| -1 | -1,506,631 |
Now, we try dividing 1,506,631 by 3:
1,506,631 ÷ 3 = 502,210.3333
If the quotient is a whole number, then 3 and 502,210.3333 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 | 1,506,631 | |
| -1 | -1,506,631 |
Let's try dividing by 4:
1,506,631 ÷ 4 = 376,657.75
If the quotient is a whole number, then 4 and 376,657.75 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 | 1,506,631 | |
| -1 | 1,506,631 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 53 | 131 | 217 | 371 | 917 | 1,643 | 4,061 | 6,943 | 11,501 | 28,427 | 48,601 | 215,233 | 1,506,631 |
| -1 | -7 | -31 | -53 | -131 | -217 | -371 | -917 | -1,643 | -4,061 | -6,943 | -11,501 | -28,427 | -48,601 | -215,233 | -1,506,631 |
Here are some more numbers to try:
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