A:
Positive:
1 x 104036055 x 208072129 x 358745145 x 71749157 x 66265457 x 22765785 x 132532285 x 4553
Negative:
-1 x -10403605-5 x -2080721-29 x -358745-145 x -71749-157 x -66265-457 x -22765-785 x -13253-2285 x -4553
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 10,403,605, 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 | 10,403,605 | |
| -1 | -10,403,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,403,605.
Example:
1 x 10,403,605 = 10,403,605
and
-1 x -10,403,605 = 10,403,605
Notice both answers equal 10,403,605
With that explanation out of the way, let's continue. Next, we take the number 10,403,605 and divide it by 2:
10,403,605 ÷ 2 = 5,201,802.5
If the quotient is a whole number, then 2 and 5,201,802.5 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 | 10,403,605 | |
| -1 | -10,403,605 |
Now, we try dividing 10,403,605 by 3:
10,403,605 ÷ 3 = 3,467,868.3333
If the quotient is a whole number, then 3 and 3,467,868.3333 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 | 10,403,605 | |
| -1 | -10,403,605 |
Let's try dividing by 4:
10,403,605 ÷ 4 = 2,600,901.25
If the quotient is a whole number, then 4 and 2,600,901.25 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 | 10,403,605 | |
| -1 | 10,403,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 157 | 457 | 785 | 2,285 | 4,553 | 13,253 | 22,765 | 66,265 | 71,749 | 358,745 | 2,080,721 | 10,403,605 |
| -1 | -5 | -29 | -145 | -157 | -457 | -785 | -2,285 | -4,553 | -13,253 | -22,765 | -66,265 | -71,749 | -358,745 | -2,080,721 | -10,403,605 |
Here are some more numbers to try:
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