A:
Positive:
1 x 4252220217 x 6074600353 x 8023057371 x 1146151433 x 9820372647 x 1606433031 x 14029118529 x 22949
Negative:
-1 x -425222021-7 x -60746003-53 x -8023057-371 x -1146151-433 x -982037-2647 x -160643-3031 x -140291-18529 x -22949
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 425,222,021, 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 | 425,222,021 | |
| -1 | -425,222,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 425,222,021.
Example:
1 x 425,222,021 = 425,222,021
and
-1 x -425,222,021 = 425,222,021
Notice both answers equal 425,222,021
With that explanation out of the way, let's continue. Next, we take the number 425,222,021 and divide it by 2:
425,222,021 ÷ 2 = 212,611,010.5
If the quotient is a whole number, then 2 and 212,611,010.5 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 | 425,222,021 | |
| -1 | -425,222,021 |
Now, we try dividing 425,222,021 by 3:
425,222,021 ÷ 3 = 141,740,673.6667
If the quotient is a whole number, then 3 and 141,740,673.6667 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 | 425,222,021 | |
| -1 | -425,222,021 |
Let's try dividing by 4:
425,222,021 ÷ 4 = 106,305,505.25
If the quotient is a whole number, then 4 and 106,305,505.25 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 | 425,222,021 | |
| -1 | 425,222,021 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 371 | 433 | 2,647 | 3,031 | 18,529 | 22,949 | 140,291 | 160,643 | 982,037 | 1,146,151 | 8,023,057 | 60,746,003 | 425,222,021 |
| -1 | -7 | -53 | -371 | -433 | -2,647 | -3,031 | -18,529 | -22,949 | -140,291 | -160,643 | -982,037 | -1,146,151 | -8,023,057 | -60,746,003 | -425,222,021 |
Here are some more numbers to try:
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