A:
Positive:
1 x 152512113 x 11731717 x 8971367 x 22763103 x 14807221 x 6901871 x 17511139 x 1339
Negative:
-1 x -1525121-13 x -117317-17 x -89713-67 x -22763-103 x -14807-221 x -6901-871 x -1751-1139 x -1339
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 1,525,121, 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 | 1,525,121 | |
| -1 | -1,525,121 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,525,121.
Example:
1 x 1,525,121 = 1,525,121
and
-1 x -1,525,121 = 1,525,121
Notice both answers equal 1,525,121
With that explanation out of the way, let's continue. Next, we take the number 1,525,121 and divide it by 2:
1,525,121 ÷ 2 = 762,560.5
If the quotient is a whole number, then 2 and 762,560.5 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 | 1,525,121 | |
| -1 | -1,525,121 |
Now, we try dividing 1,525,121 by 3:
1,525,121 ÷ 3 = 508,373.6667
If the quotient is a whole number, then 3 and 508,373.6667 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 | 1,525,121 | |
| -1 | -1,525,121 |
Let's try dividing by 4:
1,525,121 ÷ 4 = 381,280.25
If the quotient is a whole number, then 4 and 381,280.25 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 | 1,525,121 | |
| -1 | 1,525,121 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 67 | 103 | 221 | 871 | 1,139 | 1,339 | 1,751 | 6,901 | 14,807 | 22,763 | 89,713 | 117,317 | 1,525,121 |
| -1 | -13 | -17 | -67 | -103 | -221 | -871 | -1,139 | -1,339 | -1,751 | -6,901 | -14,807 | -22,763 | -89,713 | -117,317 | -1,525,121 |
Here are some more numbers to try:
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