A:
Positive:
1 x 68904017 x 98434331 x 222271113 x 60977217 x 31753281 x 24521791 x 87111967 x 3503
Negative:
-1 x -6890401-7 x -984343-31 x -222271-113 x -60977-217 x -31753-281 x -24521-791 x -8711-1967 x -3503
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 6,890,401, 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 | 6,890,401 | |
| -1 | -6,890,401 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 6,890,401.
Example:
1 x 6,890,401 = 6,890,401
and
-1 x -6,890,401 = 6,890,401
Notice both answers equal 6,890,401
With that explanation out of the way, let's continue. Next, we take the number 6,890,401 and divide it by 2:
6,890,401 ÷ 2 = 3,445,200.5
If the quotient is a whole number, then 2 and 3,445,200.5 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 | 6,890,401 | |
| -1 | -6,890,401 |
Now, we try dividing 6,890,401 by 3:
6,890,401 ÷ 3 = 2,296,800.3333
If the quotient is a whole number, then 3 and 2,296,800.3333 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 | 6,890,401 | |
| -1 | -6,890,401 |
Let's try dividing by 4:
6,890,401 ÷ 4 = 1,722,600.25
If the quotient is a whole number, then 4 and 1,722,600.25 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 | 6,890,401 | |
| -1 | 6,890,401 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 113 | 217 | 281 | 791 | 1,967 | 3,503 | 8,711 | 24,521 | 31,753 | 60,977 | 222,271 | 984,343 | 6,890,401 |
| -1 | -7 | -31 | -113 | -217 | -281 | -791 | -1,967 | -3,503 | -8,711 | -24,521 | -31,753 | -60,977 | -222,271 | -984,343 | -6,890,401 |
Here are some more numbers to try:
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