A:
Positive:
1 x 1202202255 x 2404404525 x 480880929 x 414552579 x 1521775145 x 829105395 x 304355725 x 1658211975 x 608712099 x 572752291 x 5247510495 x 11455
Negative:
-1 x -120220225-5 x -24044045-25 x -4808809-29 x -4145525-79 x -1521775-145 x -829105-395 x -304355-725 x -165821-1975 x -60871-2099 x -57275-2291 x -52475-10495 x -11455
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 120,220,225, 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 | 120,220,225 | |
| -1 | -120,220,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,220,225.
Example:
1 x 120,220,225 = 120,220,225
and
-1 x -120,220,225 = 120,220,225
Notice both answers equal 120,220,225
With that explanation out of the way, let's continue. Next, we take the number 120,220,225 and divide it by 2:
120,220,225 ÷ 2 = 60,110,112.5
If the quotient is a whole number, then 2 and 60,110,112.5 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 | 120,220,225 | |
| -1 | -120,220,225 |
Now, we try dividing 120,220,225 by 3:
120,220,225 ÷ 3 = 40,073,408.3333
If the quotient is a whole number, then 3 and 40,073,408.3333 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 | 120,220,225 | |
| -1 | -120,220,225 |
Let's try dividing by 4:
120,220,225 ÷ 4 = 30,055,056.25
If the quotient is a whole number, then 4 and 30,055,056.25 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 | 120,220,225 | |
| -1 | 120,220,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 29 | 79 | 145 | 395 | 725 | 1,975 | 2,099 | 2,291 | 10,495 | 11,455 | 52,475 | 57,275 | 60,871 | 165,821 | 304,355 | 829,105 | 1,521,775 | 4,145,525 | 4,808,809 | 24,044,045 | 120,220,225 |
| -1 | -5 | -25 | -29 | -79 | -145 | -395 | -725 | -1,975 | -2,099 | -2,291 | -10,495 | -11,455 | -52,475 | -57,275 | -60,871 | -165,821 | -304,355 | -829,105 | -1,521,775 | -4,145,525 | -4,808,809 | -24,044,045 | -120,220,225 |
Here are some more numbers to try:
Try the factor calculator