A:
Positive:
1 x 1606507497 x 2295010729 x 5539681203 x 791383613 x 2620731291 x 1244394291 x 374399037 x 17777
Negative:
-1 x -160650749-7 x -22950107-29 x -5539681-203 x -791383-613 x -262073-1291 x -124439-4291 x -37439-9037 x -17777
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 160,650,749, 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 | 160,650,749 | |
| -1 | -160,650,749 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,650,749.
Example:
1 x 160,650,749 = 160,650,749
and
-1 x -160,650,749 = 160,650,749
Notice both answers equal 160,650,749
With that explanation out of the way, let's continue. Next, we take the number 160,650,749 and divide it by 2:
160,650,749 ÷ 2 = 80,325,374.5
If the quotient is a whole number, then 2 and 80,325,374.5 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 | 160,650,749 | |
| -1 | -160,650,749 |
Now, we try dividing 160,650,749 by 3:
160,650,749 ÷ 3 = 53,550,249.6667
If the quotient is a whole number, then 3 and 53,550,249.6667 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 | 160,650,749 | |
| -1 | -160,650,749 |
Let's try dividing by 4:
160,650,749 ÷ 4 = 40,162,687.25
If the quotient is a whole number, then 4 and 40,162,687.25 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 | 160,650,749 | |
| -1 | 160,650,749 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 203 | 613 | 1,291 | 4,291 | 9,037 | 17,777 | 37,439 | 124,439 | 262,073 | 791,383 | 5,539,681 | 22,950,107 | 160,650,749 |
| -1 | -7 | -29 | -203 | -613 | -1,291 | -4,291 | -9,037 | -17,777 | -37,439 | -124,439 | -262,073 | -791,383 | -5,539,681 | -22,950,107 | -160,650,749 |
Here are some more numbers to try:
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