A:
Positive:
1 x 16050255 x 32100519 x 8447525 x 6420131 x 5177595 x 16895109 x 14725155 x 10355475 x 3379545 x 2945589 x 2725775 x 2071
Negative:
-1 x -1605025-5 x -321005-19 x -84475-25 x -64201-31 x -51775-95 x -16895-109 x -14725-155 x -10355-475 x -3379-545 x -2945-589 x -2725-775 x -2071
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 1,605,025, 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 | 1,605,025 | |
| -1 | -1,605,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,605,025.
Example:
1 x 1,605,025 = 1,605,025
and
-1 x -1,605,025 = 1,605,025
Notice both answers equal 1,605,025
With that explanation out of the way, let's continue. Next, we take the number 1,605,025 and divide it by 2:
1,605,025 ÷ 2 = 802,512.5
If the quotient is a whole number, then 2 and 802,512.5 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 | 1,605,025 | |
| -1 | -1,605,025 |
Now, we try dividing 1,605,025 by 3:
1,605,025 ÷ 3 = 535,008.3333
If the quotient is a whole number, then 3 and 535,008.3333 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 | 1,605,025 | |
| -1 | -1,605,025 |
Let's try dividing by 4:
1,605,025 ÷ 4 = 401,256.25
If the quotient is a whole number, then 4 and 401,256.25 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 | 1,605,025 | |
| -1 | 1,605,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 31 | 95 | 109 | 155 | 475 | 545 | 589 | 775 | 2,071 | 2,725 | 2,945 | 3,379 | 10,355 | 14,725 | 16,895 | 51,775 | 64,201 | 84,475 | 321,005 | 1,605,025 |
| -1 | -5 | -19 | -25 | -31 | -95 | -109 | -155 | -475 | -545 | -589 | -775 | -2,071 | -2,725 | -2,945 | -3,379 | -10,355 | -14,725 | -16,895 | -51,775 | -64,201 | -84,475 | -321,005 | -1,605,025 |
Here are some more numbers to try:
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