A:
Positive:
1 x 214546855 x 42909377 x 306495535 x 61299141 x 523285205 x 104657287 x 747551435 x 14951
Negative:
-1 x -21454685-5 x -4290937-7 x -3064955-35 x -612991-41 x -523285-205 x -104657-287 x -74755-1435 x -14951
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 21,454,685, 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 | 21,454,685 | |
| -1 | -21,454,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,454,685.
Example:
1 x 21,454,685 = 21,454,685
and
-1 x -21,454,685 = 21,454,685
Notice both answers equal 21,454,685
With that explanation out of the way, let's continue. Next, we take the number 21,454,685 and divide it by 2:
21,454,685 ÷ 2 = 10,727,342.5
If the quotient is a whole number, then 2 and 10,727,342.5 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 | 21,454,685 | |
| -1 | -21,454,685 |
Now, we try dividing 21,454,685 by 3:
21,454,685 ÷ 3 = 7,151,561.6667
If the quotient is a whole number, then 3 and 7,151,561.6667 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 | 21,454,685 | |
| -1 | -21,454,685 |
Let's try dividing by 4:
21,454,685 ÷ 4 = 5,363,671.25
If the quotient is a whole number, then 4 and 5,363,671.25 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 | 21,454,685 | |
| -1 | 21,454,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 14,951 | 74,755 | 104,657 | 523,285 | 612,991 | 3,064,955 | 4,290,937 | 21,454,685 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -14,951 | -74,755 | -104,657 | -523,285 | -612,991 | -3,064,955 | -4,290,937 | -21,454,685 |
Here are some more numbers to try:
Try the factor calculator