A:
Positive:
1 x 15061555 x 3012317 x 21516523 x 6548535 x 43033115 x 13097161 x 9355805 x 1871
Negative:
-1 x -1506155-5 x -301231-7 x -215165-23 x -65485-35 x -43033-115 x -13097-161 x -9355-805 x -1871
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 1,506,155, 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 | 1,506,155 | |
| -1 | -1,506,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,506,155.
Example:
1 x 1,506,155 = 1,506,155
and
-1 x -1,506,155 = 1,506,155
Notice both answers equal 1,506,155
With that explanation out of the way, let's continue. Next, we take the number 1,506,155 and divide it by 2:
1,506,155 ÷ 2 = 753,077.5
If the quotient is a whole number, then 2 and 753,077.5 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 | 1,506,155 | |
| -1 | -1,506,155 |
Now, we try dividing 1,506,155 by 3:
1,506,155 ÷ 3 = 502,051.6667
If the quotient is a whole number, then 3 and 502,051.6667 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 | 1,506,155 | |
| -1 | -1,506,155 |
Let's try dividing by 4:
1,506,155 ÷ 4 = 376,538.75
If the quotient is a whole number, then 4 and 376,538.75 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 | 1,506,155 | |
| -1 | 1,506,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 1,871 | 9,355 | 13,097 | 43,033 | 65,485 | 215,165 | 301,231 | 1,506,155 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -1,871 | -9,355 | -13,097 | -43,033 | -65,485 | -215,165 | -301,231 | -1,506,155 |
Here are some more numbers to try:
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