A:
Positive:
1 x 1727763737 x 2468233911 x 1570694377 x 2243849331 x 5219832317 x 745693641 x 474536779 x 25487
Negative:
-1 x -172776373-7 x -24682339-11 x -15706943-77 x -2243849-331 x -521983-2317 x -74569-3641 x -47453-6779 x -25487
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 172,776,373, 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 | 172,776,373 | |
| -1 | -172,776,373 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 172,776,373.
Example:
1 x 172,776,373 = 172,776,373
and
-1 x -172,776,373 = 172,776,373
Notice both answers equal 172,776,373
With that explanation out of the way, let's continue. Next, we take the number 172,776,373 and divide it by 2:
172,776,373 ÷ 2 = 86,388,186.5
If the quotient is a whole number, then 2 and 86,388,186.5 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 | 172,776,373 | |
| -1 | -172,776,373 |
Now, we try dividing 172,776,373 by 3:
172,776,373 ÷ 3 = 57,592,124.3333
If the quotient is a whole number, then 3 and 57,592,124.3333 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 | 172,776,373 | |
| -1 | -172,776,373 |
Let's try dividing by 4:
172,776,373 ÷ 4 = 43,194,093.25
If the quotient is a whole number, then 4 and 43,194,093.25 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 | 172,776,373 | |
| -1 | 172,776,373 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 331 | 2,317 | 3,641 | 6,779 | 25,487 | 47,453 | 74,569 | 521,983 | 2,243,849 | 15,706,943 | 24,682,339 | 172,776,373 |
| -1 | -7 | -11 | -77 | -331 | -2,317 | -3,641 | -6,779 | -25,487 | -47,453 | -74,569 | -521,983 | -2,243,849 | -15,706,943 | -24,682,339 | -172,776,373 |
Here are some more numbers to try:
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