A:
Positive:
1 x 168666855 x 337333711 x 153333555 x 306667449 x 37565683 x 246952245 x 75133415 x 4939
Negative:
-1 x -16866685-5 x -3373337-11 x -1533335-55 x -306667-449 x -37565-683 x -24695-2245 x -7513-3415 x -4939
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 16,866,685, 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 | 16,866,685 | |
| -1 | -16,866,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,866,685.
Example:
1 x 16,866,685 = 16,866,685
and
-1 x -16,866,685 = 16,866,685
Notice both answers equal 16,866,685
With that explanation out of the way, let's continue. Next, we take the number 16,866,685 and divide it by 2:
16,866,685 ÷ 2 = 8,433,342.5
If the quotient is a whole number, then 2 and 8,433,342.5 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 | 16,866,685 | |
| -1 | -16,866,685 |
Now, we try dividing 16,866,685 by 3:
16,866,685 ÷ 3 = 5,622,228.3333
If the quotient is a whole number, then 3 and 5,622,228.3333 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 | 16,866,685 | |
| -1 | -16,866,685 |
Let's try dividing by 4:
16,866,685 ÷ 4 = 4,216,671.25
If the quotient is a whole number, then 4 and 4,216,671.25 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 | 16,866,685 | |
| -1 | 16,866,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 449 | 683 | 2,245 | 3,415 | 4,939 | 7,513 | 24,695 | 37,565 | 306,667 | 1,533,335 | 3,373,337 | 16,866,685 |
| -1 | -5 | -11 | -55 | -449 | -683 | -2,245 | -3,415 | -4,939 | -7,513 | -24,695 | -37,565 | -306,667 | -1,533,335 | -3,373,337 | -16,866,685 |
Here are some more numbers to try:
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