A:
Positive:
1 x 1786480717 x 105087119 x 94025341 x 43572771 x 251617323 x 55309361 x 49487697 x 25631779 x 229331207 x 148011349 x 132432911 x 6137
Negative:
-1 x -17864807-17 x -1050871-19 x -940253-41 x -435727-71 x -251617-323 x -55309-361 x -49487-697 x -25631-779 x -22933-1207 x -14801-1349 x -13243-2911 x -6137
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 17,864,807, 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 | 17,864,807 | |
| -1 | -17,864,807 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,864,807.
Example:
1 x 17,864,807 = 17,864,807
and
-1 x -17,864,807 = 17,864,807
Notice both answers equal 17,864,807
With that explanation out of the way, let's continue. Next, we take the number 17,864,807 and divide it by 2:
17,864,807 ÷ 2 = 8,932,403.5
If the quotient is a whole number, then 2 and 8,932,403.5 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 | 17,864,807 | |
| -1 | -17,864,807 |
Now, we try dividing 17,864,807 by 3:
17,864,807 ÷ 3 = 5,954,935.6667
If the quotient is a whole number, then 3 and 5,954,935.6667 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 | 17,864,807 | |
| -1 | -17,864,807 |
Let's try dividing by 4:
17,864,807 ÷ 4 = 4,466,201.75
If the quotient is a whole number, then 4 and 4,466,201.75 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 | 17,864,807 | |
| -1 | 17,864,807 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 41 | 71 | 323 | 361 | 697 | 779 | 1,207 | 1,349 | 2,911 | 6,137 | 13,243 | 14,801 | 22,933 | 25,631 | 49,487 | 55,309 | 251,617 | 435,727 | 940,253 | 1,050,871 | 17,864,807 |
| -1 | -17 | -19 | -41 | -71 | -323 | -361 | -697 | -779 | -1,207 | -1,349 | -2,911 | -6,137 | -13,243 | -14,801 | -22,933 | -25,631 | -49,487 | -55,309 | -251,617 | -435,727 | -940,253 | -1,050,871 | -17,864,807 |
Here are some more numbers to try:
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