A:
Positive:
1 x 16065739313 x 1235826141 x 3918473383 x 419471533 x 301421787 x 2041394979 x 3226710231 x 15703
Negative:
-1 x -160657393-13 x -12358261-41 x -3918473-383 x -419471-533 x -301421-787 x -204139-4979 x -32267-10231 x -15703
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 160,657,393, 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 | 160,657,393 | |
| -1 | -160,657,393 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,657,393.
Example:
1 x 160,657,393 = 160,657,393
and
-1 x -160,657,393 = 160,657,393
Notice both answers equal 160,657,393
With that explanation out of the way, let's continue. Next, we take the number 160,657,393 and divide it by 2:
160,657,393 ÷ 2 = 80,328,696.5
If the quotient is a whole number, then 2 and 80,328,696.5 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 | 160,657,393 | |
| -1 | -160,657,393 |
Now, we try dividing 160,657,393 by 3:
160,657,393 ÷ 3 = 53,552,464.3333
If the quotient is a whole number, then 3 and 53,552,464.3333 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 | 160,657,393 | |
| -1 | -160,657,393 |
Let's try dividing by 4:
160,657,393 ÷ 4 = 40,164,348.25
If the quotient is a whole number, then 4 and 40,164,348.25 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 | 160,657,393 | |
| -1 | 160,657,393 |
If you did it right, you will end up with this table:
| 1 | 13 | 41 | 383 | 533 | 787 | 4,979 | 10,231 | 15,703 | 32,267 | 204,139 | 301,421 | 419,471 | 3,918,473 | 12,358,261 | 160,657,393 |
| -1 | -13 | -41 | -383 | -533 | -787 | -4,979 | -10,231 | -15,703 | -32,267 | -204,139 | -301,421 | -419,471 | -3,918,473 | -12,358,261 | -160,657,393 |
Here are some more numbers to try:
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