A:
Positive:
1 x 7316214017 x 10451734317 x 4303655349 x 14931049119 x 6148079343 x 2133007833 x 8782975831 x 125471
Negative:
-1 x -731621401-7 x -104517343-17 x -43036553-49 x -14931049-119 x -6148079-343 x -2133007-833 x -878297-5831 x -125471
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 731,621,401, 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 | 731,621,401 | |
| -1 | -731,621,401 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 731,621,401.
Example:
1 x 731,621,401 = 731,621,401
and
-1 x -731,621,401 = 731,621,401
Notice both answers equal 731,621,401
With that explanation out of the way, let's continue. Next, we take the number 731,621,401 and divide it by 2:
731,621,401 ÷ 2 = 365,810,700.5
If the quotient is a whole number, then 2 and 365,810,700.5 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 | 731,621,401 | |
| -1 | -731,621,401 |
Now, we try dividing 731,621,401 by 3:
731,621,401 ÷ 3 = 243,873,800.3333
If the quotient is a whole number, then 3 and 243,873,800.3333 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 | 731,621,401 | |
| -1 | -731,621,401 |
Let's try dividing by 4:
731,621,401 ÷ 4 = 182,905,350.25
If the quotient is a whole number, then 4 and 182,905,350.25 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 | 731,621,401 | |
| -1 | 731,621,401 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 49 | 119 | 343 | 833 | 5,831 | 125,471 | 878,297 | 2,133,007 | 6,148,079 | 14,931,049 | 43,036,553 | 104,517,343 | 731,621,401 |
| -1 | -7 | -17 | -49 | -119 | -343 | -833 | -5,831 | -125,471 | -878,297 | -2,133,007 | -6,148,079 | -14,931,049 | -43,036,553 | -104,517,343 | -731,621,401 |
Here are some more numbers to try:
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