A:
Positive:
1 x 2441404217 x 34877203251 x 972671283 x 862687491 x 4972311757 x 1389531981 x 1232413437 x 71033
Negative:
-1 x -244140421-7 x -34877203-251 x -972671-283 x -862687-491 x -497231-1757 x -138953-1981 x -123241-3437 x -71033
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 244,140,421, 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 | 244,140,421 | |
| -1 | -244,140,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 244,140,421.
Example:
1 x 244,140,421 = 244,140,421
and
-1 x -244,140,421 = 244,140,421
Notice both answers equal 244,140,421
With that explanation out of the way, let's continue. Next, we take the number 244,140,421 and divide it by 2:
244,140,421 ÷ 2 = 122,070,210.5
If the quotient is a whole number, then 2 and 122,070,210.5 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 | 244,140,421 | |
| -1 | -244,140,421 |
Now, we try dividing 244,140,421 by 3:
244,140,421 ÷ 3 = 81,380,140.3333
If the quotient is a whole number, then 3 and 81,380,140.3333 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 | 244,140,421 | |
| -1 | -244,140,421 |
Let's try dividing by 4:
244,140,421 ÷ 4 = 61,035,105.25
If the quotient is a whole number, then 4 and 61,035,105.25 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 | 244,140,421 | |
| -1 | 244,140,421 |
If you did it right, you will end up with this table:
| 1 | 7 | 251 | 283 | 491 | 1,757 | 1,981 | 3,437 | 71,033 | 123,241 | 138,953 | 497,231 | 862,687 | 972,671 | 34,877,203 | 244,140,421 |
| -1 | -7 | -251 | -283 | -491 | -1,757 | -1,981 | -3,437 | -71,033 | -123,241 | -138,953 | -497,231 | -862,687 | -972,671 | -34,877,203 | -244,140,421 |
Here are some more numbers to try:
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