A:
Positive:
1 x 1722250555 x 3444501129 x 593879571 x 2425705145 x 1187759355 x 4851412059 x 8364510295 x 16729
Negative:
-1 x -172225055-5 x -34445011-29 x -5938795-71 x -2425705-145 x -1187759-355 x -485141-2059 x -83645-10295 x -16729
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 172,225,055, 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 | 172,225,055 | |
| -1 | -172,225,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 172,225,055.
Example:
1 x 172,225,055 = 172,225,055
and
-1 x -172,225,055 = 172,225,055
Notice both answers equal 172,225,055
With that explanation out of the way, let's continue. Next, we take the number 172,225,055 and divide it by 2:
172,225,055 ÷ 2 = 86,112,527.5
If the quotient is a whole number, then 2 and 86,112,527.5 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 | 172,225,055 | |
| -1 | -172,225,055 |
Now, we try dividing 172,225,055 by 3:
172,225,055 ÷ 3 = 57,408,351.6667
If the quotient is a whole number, then 3 and 57,408,351.6667 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 | 172,225,055 | |
| -1 | -172,225,055 |
Let's try dividing by 4:
172,225,055 ÷ 4 = 43,056,263.75
If the quotient is a whole number, then 4 and 43,056,263.75 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 | 172,225,055 | |
| -1 | 172,225,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 71 | 145 | 355 | 2,059 | 10,295 | 16,729 | 83,645 | 485,141 | 1,187,759 | 2,425,705 | 5,938,795 | 34,445,011 | 172,225,055 |
| -1 | -5 | -29 | -71 | -145 | -355 | -2,059 | -10,295 | -16,729 | -83,645 | -485,141 | -1,187,759 | -2,425,705 | -5,938,795 | -34,445,011 | -172,225,055 |
Here are some more numbers to try:
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