A:
Positive:
1 x 264311655 x 528623367 x 394495257 x 102845307 x 86095335 x 788991285 x 205691535 x 17219
Negative:
-1 x -26431165-5 x -5286233-67 x -394495-257 x -102845-307 x -86095-335 x -78899-1285 x -20569-1535 x -17219
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 26,431,165, 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 | 26,431,165 | |
| -1 | -26,431,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,431,165.
Example:
1 x 26,431,165 = 26,431,165
and
-1 x -26,431,165 = 26,431,165
Notice both answers equal 26,431,165
With that explanation out of the way, let's continue. Next, we take the number 26,431,165 and divide it by 2:
26,431,165 ÷ 2 = 13,215,582.5
If the quotient is a whole number, then 2 and 13,215,582.5 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 | 26,431,165 | |
| -1 | -26,431,165 |
Now, we try dividing 26,431,165 by 3:
26,431,165 ÷ 3 = 8,810,388.3333
If the quotient is a whole number, then 3 and 8,810,388.3333 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 | 26,431,165 | |
| -1 | -26,431,165 |
Let's try dividing by 4:
26,431,165 ÷ 4 = 6,607,791.25
If the quotient is a whole number, then 4 and 6,607,791.25 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 | 26,431,165 | |
| -1 | 26,431,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 257 | 307 | 335 | 1,285 | 1,535 | 17,219 | 20,569 | 78,899 | 86,095 | 102,845 | 394,495 | 5,286,233 | 26,431,165 |
| -1 | -5 | -67 | -257 | -307 | -335 | -1,285 | -1,535 | -17,219 | -20,569 | -78,899 | -86,095 | -102,845 | -394,495 | -5,286,233 | -26,431,165 |
Here are some more numbers to try:
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