A:
Positive:
1 x 222901855 x 445803773 x 305345173 x 128845353 x 63145365 x 61069865 x 257691765 x 12629
Negative:
-1 x -22290185-5 x -4458037-73 x -305345-173 x -128845-353 x -63145-365 x -61069-865 x -25769-1765 x -12629
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 22,290,185, 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 | 22,290,185 | |
| -1 | -22,290,185 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,290,185.
Example:
1 x 22,290,185 = 22,290,185
and
-1 x -22,290,185 = 22,290,185
Notice both answers equal 22,290,185
With that explanation out of the way, let's continue. Next, we take the number 22,290,185 and divide it by 2:
22,290,185 ÷ 2 = 11,145,092.5
If the quotient is a whole number, then 2 and 11,145,092.5 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 | 22,290,185 | |
| -1 | -22,290,185 |
Now, we try dividing 22,290,185 by 3:
22,290,185 ÷ 3 = 7,430,061.6667
If the quotient is a whole number, then 3 and 7,430,061.6667 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 | 22,290,185 | |
| -1 | -22,290,185 |
Let's try dividing by 4:
22,290,185 ÷ 4 = 5,572,546.25
If the quotient is a whole number, then 4 and 5,572,546.25 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 | 22,290,185 | |
| -1 | 22,290,185 |
If you did it right, you will end up with this table:
| 1 | 5 | 73 | 173 | 353 | 365 | 865 | 1,765 | 12,629 | 25,769 | 61,069 | 63,145 | 128,845 | 305,345 | 4,458,037 | 22,290,185 |
| -1 | -5 | -73 | -173 | -353 | -365 | -865 | -1,765 | -12,629 | -25,769 | -61,069 | -63,145 | -128,845 | -305,345 | -4,458,037 | -22,290,185 |
Here are some more numbers to try:
Try the factor calculator