A:
Positive:
1 x 1130132155 x 226026437 x 1614474535 x 322894983 x 1361605415 x 272321581 x 1945152905 x 38903
Negative:
-1 x -113013215-5 x -22602643-7 x -16144745-35 x -3228949-83 x -1361605-415 x -272321-581 x -194515-2905 x -38903
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 113,013,215, 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 | 113,013,215 | |
| -1 | -113,013,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 113,013,215.
Example:
1 x 113,013,215 = 113,013,215
and
-1 x -113,013,215 = 113,013,215
Notice both answers equal 113,013,215
With that explanation out of the way, let's continue. Next, we take the number 113,013,215 and divide it by 2:
113,013,215 ÷ 2 = 56,506,607.5
If the quotient is a whole number, then 2 and 56,506,607.5 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 | 113,013,215 | |
| -1 | -113,013,215 |
Now, we try dividing 113,013,215 by 3:
113,013,215 ÷ 3 = 37,671,071.6667
If the quotient is a whole number, then 3 and 37,671,071.6667 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 | 113,013,215 | |
| -1 | -113,013,215 |
Let's try dividing by 4:
113,013,215 ÷ 4 = 28,253,303.75
If the quotient is a whole number, then 4 and 28,253,303.75 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 | 113,013,215 | |
| -1 | 113,013,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 83 | 415 | 581 | 2,905 | 38,903 | 194,515 | 272,321 | 1,361,605 | 3,228,949 | 16,144,745 | 22,602,643 | 113,013,215 |
| -1 | -5 | -7 | -35 | -83 | -415 | -581 | -2,905 | -38,903 | -194,515 | -272,321 | -1,361,605 | -3,228,949 | -16,144,745 | -22,602,643 | -113,013,215 |
Here are some more numbers to try:
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