A:
Positive:
1 x 840167237 x 1200238923 x 365290149 x 1714627127 x 661549161 x 521843587 x 143129889 x 945071127 x 745492921 x 287634109 x 204476223 x 13501
Negative:
-1 x -84016723-7 x -12002389-23 x -3652901-49 x -1714627-127 x -661549-161 x -521843-587 x -143129-889 x -94507-1127 x -74549-2921 x -28763-4109 x -20447-6223 x -13501
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 84,016,723, 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 | 84,016,723 | |
| -1 | -84,016,723 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 84,016,723.
Example:
1 x 84,016,723 = 84,016,723
and
-1 x -84,016,723 = 84,016,723
Notice both answers equal 84,016,723
With that explanation out of the way, let's continue. Next, we take the number 84,016,723 and divide it by 2:
84,016,723 ÷ 2 = 42,008,361.5
If the quotient is a whole number, then 2 and 42,008,361.5 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 | 84,016,723 | |
| -1 | -84,016,723 |
Now, we try dividing 84,016,723 by 3:
84,016,723 ÷ 3 = 28,005,574.3333
If the quotient is a whole number, then 3 and 28,005,574.3333 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 | 84,016,723 | |
| -1 | -84,016,723 |
Let's try dividing by 4:
84,016,723 ÷ 4 = 21,004,180.75
If the quotient is a whole number, then 4 and 21,004,180.75 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 | 84,016,723 | |
| -1 | 84,016,723 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 49 | 127 | 161 | 587 | 889 | 1,127 | 2,921 | 4,109 | 6,223 | 13,501 | 20,447 | 28,763 | 74,549 | 94,507 | 143,129 | 521,843 | 661,549 | 1,714,627 | 3,652,901 | 12,002,389 | 84,016,723 |
| -1 | -7 | -23 | -49 | -127 | -161 | -587 | -889 | -1,127 | -2,921 | -4,109 | -6,223 | -13,501 | -20,447 | -28,763 | -74,549 | -94,507 | -143,129 | -521,843 | -661,549 | -1,714,627 | -3,652,901 | -12,002,389 | -84,016,723 |
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