A:
Positive:
1 x 24242032111 x 2203821113 x 1864771759 x 4108819143 x 1695247487 x 497783649 x 373529767 x 3160633481 x 696415357 x 452536331 x 382918437 x 28733
Negative:
-1 x -242420321-11 x -22038211-13 x -18647717-59 x -4108819-143 x -1695247-487 x -497783-649 x -373529-767 x -316063-3481 x -69641-5357 x -45253-6331 x -38291-8437 x -28733
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 242,420,321, 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 | 242,420,321 | |
| -1 | -242,420,321 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 242,420,321.
Example:
1 x 242,420,321 = 242,420,321
and
-1 x -242,420,321 = 242,420,321
Notice both answers equal 242,420,321
With that explanation out of the way, let's continue. Next, we take the number 242,420,321 and divide it by 2:
242,420,321 ÷ 2 = 121,210,160.5
If the quotient is a whole number, then 2 and 121,210,160.5 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 | 242,420,321 | |
| -1 | -242,420,321 |
Now, we try dividing 242,420,321 by 3:
242,420,321 ÷ 3 = 80,806,773.6667
If the quotient is a whole number, then 3 and 80,806,773.6667 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 | 242,420,321 | |
| -1 | -242,420,321 |
Let's try dividing by 4:
242,420,321 ÷ 4 = 60,605,080.25
If the quotient is a whole number, then 4 and 60,605,080.25 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 | 242,420,321 | |
| -1 | 242,420,321 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 59 | 143 | 487 | 649 | 767 | 3,481 | 5,357 | 6,331 | 8,437 | 28,733 | 38,291 | 45,253 | 69,641 | 316,063 | 373,529 | 497,783 | 1,695,247 | 4,108,819 | 18,647,717 | 22,038,211 | 242,420,321 |
| -1 | -11 | -13 | -59 | -143 | -487 | -649 | -767 | -3,481 | -5,357 | -6,331 | -8,437 | -28,733 | -38,291 | -45,253 | -69,641 | -316,063 | -373,529 | -497,783 | -1,695,247 | -4,108,819 | -18,647,717 | -22,038,211 | -242,420,321 |
Here are some more numbers to try:
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