A:
Positive:
1 x 4287011311 x 389728313 x 3297701143 x 299791349 x 122837859 x 499073839 x 111674537 x 9449
Negative:
-1 x -42870113-11 x -3897283-13 x -3297701-143 x -299791-349 x -122837-859 x -49907-3839 x -11167-4537 x -9449
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 42,870,113, 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 | 42,870,113 | |
| -1 | -42,870,113 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,870,113.
Example:
1 x 42,870,113 = 42,870,113
and
-1 x -42,870,113 = 42,870,113
Notice both answers equal 42,870,113
With that explanation out of the way, let's continue. Next, we take the number 42,870,113 and divide it by 2:
42,870,113 ÷ 2 = 21,435,056.5
If the quotient is a whole number, then 2 and 21,435,056.5 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 | 42,870,113 | |
| -1 | -42,870,113 |
Now, we try dividing 42,870,113 by 3:
42,870,113 ÷ 3 = 14,290,037.6667
If the quotient is a whole number, then 3 and 14,290,037.6667 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 | 42,870,113 | |
| -1 | -42,870,113 |
Let's try dividing by 4:
42,870,113 ÷ 4 = 10,717,528.25
If the quotient is a whole number, then 4 and 10,717,528.25 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 | 42,870,113 | |
| -1 | 42,870,113 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 349 | 859 | 3,839 | 4,537 | 9,449 | 11,167 | 49,907 | 122,837 | 299,791 | 3,297,701 | 3,897,283 | 42,870,113 |
| -1 | -11 | -13 | -143 | -349 | -859 | -3,839 | -4,537 | -9,449 | -11,167 | -49,907 | -122,837 | -299,791 | -3,297,701 | -3,897,283 | -42,870,113 |
Here are some more numbers to try:
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