A:
Positive:
1 x 4212022555 x 8424045161 x 6904955233 x 1807735305 x 13809911165 x 3615475927 x 7106514213 x 29635
Negative:
-1 x -421202255-5 x -84240451-61 x -6904955-233 x -1807735-305 x -1380991-1165 x -361547-5927 x -71065-14213 x -29635
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 421,202,255, 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 | 421,202,255 | |
| -1 | -421,202,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 421,202,255.
Example:
1 x 421,202,255 = 421,202,255
and
-1 x -421,202,255 = 421,202,255
Notice both answers equal 421,202,255
With that explanation out of the way, let's continue. Next, we take the number 421,202,255 and divide it by 2:
421,202,255 ÷ 2 = 210,601,127.5
If the quotient is a whole number, then 2 and 210,601,127.5 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 | 421,202,255 | |
| -1 | -421,202,255 |
Now, we try dividing 421,202,255 by 3:
421,202,255 ÷ 3 = 140,400,751.6667
If the quotient is a whole number, then 3 and 140,400,751.6667 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 | 421,202,255 | |
| -1 | -421,202,255 |
Let's try dividing by 4:
421,202,255 ÷ 4 = 105,300,563.75
If the quotient is a whole number, then 4 and 105,300,563.75 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 | 421,202,255 | |
| -1 | 421,202,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 61 | 233 | 305 | 1,165 | 5,927 | 14,213 | 29,635 | 71,065 | 361,547 | 1,380,991 | 1,807,735 | 6,904,955 | 84,240,451 | 421,202,255 |
| -1 | -5 | -61 | -233 | -305 | -1,165 | -5,927 | -14,213 | -29,635 | -71,065 | -361,547 | -1,380,991 | -1,807,735 | -6,904,955 | -84,240,451 | -421,202,255 |
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