A:
Positive:
1 x 16021060913 x 12323893113 x 1417793191 x 838799571 x 2805791469 x 1090612483 x 645237423 x 21583
Negative:
-1 x -160210609-13 x -12323893-113 x -1417793-191 x -838799-571 x -280579-1469 x -109061-2483 x -64523-7423 x -21583
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 160,210,609, 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 | 160,210,609 | |
| -1 | -160,210,609 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,210,609.
Example:
1 x 160,210,609 = 160,210,609
and
-1 x -160,210,609 = 160,210,609
Notice both answers equal 160,210,609
With that explanation out of the way, let's continue. Next, we take the number 160,210,609 and divide it by 2:
160,210,609 ÷ 2 = 80,105,304.5
If the quotient is a whole number, then 2 and 80,105,304.5 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 | 160,210,609 | |
| -1 | -160,210,609 |
Now, we try dividing 160,210,609 by 3:
160,210,609 ÷ 3 = 53,403,536.3333
If the quotient is a whole number, then 3 and 53,403,536.3333 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 | 160,210,609 | |
| -1 | -160,210,609 |
Let's try dividing by 4:
160,210,609 ÷ 4 = 40,052,652.25
If the quotient is a whole number, then 4 and 40,052,652.25 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 | 160,210,609 | |
| -1 | 160,210,609 |
If you did it right, you will end up with this table:
| 1 | 13 | 113 | 191 | 571 | 1,469 | 2,483 | 7,423 | 21,583 | 64,523 | 109,061 | 280,579 | 838,799 | 1,417,793 | 12,323,893 | 160,210,609 |
| -1 | -13 | -113 | -191 | -571 | -1,469 | -2,483 | -7,423 | -21,583 | -64,523 | -109,061 | -280,579 | -838,799 | -1,417,793 | -12,323,893 | -160,210,609 |
Here are some more numbers to try:
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