A:
Positive:
1 x 2692057117 x 158356337 x 727583127 x 211973337 x 79883629 x 427992159 x 124694699 x 5729
Negative:
-1 x -26920571-17 x -1583563-37 x -727583-127 x -211973-337 x -79883-629 x -42799-2159 x -12469-4699 x -5729
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 26,920,571, 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 | 26,920,571 | |
| -1 | -26,920,571 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,920,571.
Example:
1 x 26,920,571 = 26,920,571
and
-1 x -26,920,571 = 26,920,571
Notice both answers equal 26,920,571
With that explanation out of the way, let's continue. Next, we take the number 26,920,571 and divide it by 2:
26,920,571 ÷ 2 = 13,460,285.5
If the quotient is a whole number, then 2 and 13,460,285.5 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 | 26,920,571 | |
| -1 | -26,920,571 |
Now, we try dividing 26,920,571 by 3:
26,920,571 ÷ 3 = 8,973,523.6667
If the quotient is a whole number, then 3 and 8,973,523.6667 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 | 26,920,571 | |
| -1 | -26,920,571 |
Let's try dividing by 4:
26,920,571 ÷ 4 = 6,730,142.75
If the quotient is a whole number, then 4 and 6,730,142.75 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 | 26,920,571 | |
| -1 | 26,920,571 |
If you did it right, you will end up with this table:
| 1 | 17 | 37 | 127 | 337 | 629 | 2,159 | 4,699 | 5,729 | 12,469 | 42,799 | 79,883 | 211,973 | 727,583 | 1,583,563 | 26,920,571 |
| -1 | -17 | -37 | -127 | -337 | -629 | -2,159 | -4,699 | -5,729 | -12,469 | -42,799 | -79,883 | -211,973 | -727,583 | -1,583,563 | -26,920,571 |
Here are some more numbers to try:
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