A:
Positive:
1 x 1311545313 x 100888119 x 69028729 x 452257247 x 53099377 x 34789551 x 238031831 x 7163
Negative:
-1 x -13115453-13 x -1008881-19 x -690287-29 x -452257-247 x -53099-377 x -34789-551 x -23803-1831 x -7163
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 13,115,453, 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 | 13,115,453 | |
| -1 | -13,115,453 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,115,453.
Example:
1 x 13,115,453 = 13,115,453
and
-1 x -13,115,453 = 13,115,453
Notice both answers equal 13,115,453
With that explanation out of the way, let's continue. Next, we take the number 13,115,453 and divide it by 2:
13,115,453 ÷ 2 = 6,557,726.5
If the quotient is a whole number, then 2 and 6,557,726.5 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 | 13,115,453 | |
| -1 | -13,115,453 |
Now, we try dividing 13,115,453 by 3:
13,115,453 ÷ 3 = 4,371,817.6667
If the quotient is a whole number, then 3 and 4,371,817.6667 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 | 13,115,453 | |
| -1 | -13,115,453 |
Let's try dividing by 4:
13,115,453 ÷ 4 = 3,278,863.25
If the quotient is a whole number, then 4 and 3,278,863.25 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 | 13,115,453 | |
| -1 | 13,115,453 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 29 | 247 | 377 | 551 | 1,831 | 7,163 | 23,803 | 34,789 | 53,099 | 452,257 | 690,287 | 1,008,881 | 13,115,453 |
| -1 | -13 | -19 | -29 | -247 | -377 | -551 | -1,831 | -7,163 | -23,803 | -34,789 | -53,099 | -452,257 | -690,287 | -1,008,881 | -13,115,453 |
Here are some more numbers to try:
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