A:
Positive:
1 x 1387786329 x 47854731 x 44767343 x 322741359 x 38657899 x 154371247 x 111291333 x 10411
Negative:
-1 x -13877863-29 x -478547-31 x -447673-43 x -322741-359 x -38657-899 x -15437-1247 x -11129-1333 x -10411
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 13,877,863, 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 | 13,877,863 | |
| -1 | -13,877,863 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,877,863.
Example:
1 x 13,877,863 = 13,877,863
and
-1 x -13,877,863 = 13,877,863
Notice both answers equal 13,877,863
With that explanation out of the way, let's continue. Next, we take the number 13,877,863 and divide it by 2:
13,877,863 ÷ 2 = 6,938,931.5
If the quotient is a whole number, then 2 and 6,938,931.5 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 | 13,877,863 | |
| -1 | -13,877,863 |
Now, we try dividing 13,877,863 by 3:
13,877,863 ÷ 3 = 4,625,954.3333
If the quotient is a whole number, then 3 and 4,625,954.3333 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 | 13,877,863 | |
| -1 | -13,877,863 |
Let's try dividing by 4:
13,877,863 ÷ 4 = 3,469,465.75
If the quotient is a whole number, then 4 and 3,469,465.75 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 | 13,877,863 | |
| -1 | 13,877,863 |
If you did it right, you will end up with this table:
| 1 | 29 | 31 | 43 | 359 | 899 | 1,247 | 1,333 | 10,411 | 11,129 | 15,437 | 38,657 | 322,741 | 447,673 | 478,547 | 13,877,863 |
| -1 | -29 | -31 | -43 | -359 | -899 | -1,247 | -1,333 | -10,411 | -11,129 | -15,437 | -38,657 | -322,741 | -447,673 | -478,547 | -13,877,863 |
Here are some more numbers to try:
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