A:
Positive:
1 x 174218455 x 34843697 x 248883531 x 56199535 x 497767155 x 112399217 x 802851085 x 16057
Negative:
-1 x -17421845-5 x -3484369-7 x -2488835-31 x -561995-35 x -497767-155 x -112399-217 x -80285-1085 x -16057
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 17,421,845, 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 | 17,421,845 | |
| -1 | -17,421,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,421,845.
Example:
1 x 17,421,845 = 17,421,845
and
-1 x -17,421,845 = 17,421,845
Notice both answers equal 17,421,845
With that explanation out of the way, let's continue. Next, we take the number 17,421,845 and divide it by 2:
17,421,845 ÷ 2 = 8,710,922.5
If the quotient is a whole number, then 2 and 8,710,922.5 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 | 17,421,845 | |
| -1 | -17,421,845 |
Now, we try dividing 17,421,845 by 3:
17,421,845 ÷ 3 = 5,807,281.6667
If the quotient is a whole number, then 3 and 5,807,281.6667 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 | 17,421,845 | |
| -1 | -17,421,845 |
Let's try dividing by 4:
17,421,845 ÷ 4 = 4,355,461.25
If the quotient is a whole number, then 4 and 4,355,461.25 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 | 17,421,845 | |
| -1 | 17,421,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 16,057 | 80,285 | 112,399 | 497,767 | 561,995 | 2,488,835 | 3,484,369 | 17,421,845 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -16,057 | -80,285 | -112,399 | -497,767 | -561,995 | -2,488,835 | -3,484,369 | -17,421,845 |
Here are some more numbers to try:
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