A:
Positive:
1 x 842020697 x 1202886741 x 205370973 x 1153453287 x 293387511 x 1647792993 x 281334019 x 20951
Negative:
-1 x -84202069-7 x -12028867-41 x -2053709-73 x -1153453-287 x -293387-511 x -164779-2993 x -28133-4019 x -20951
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 84,202,069, 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 | 84,202,069 | |
| -1 | -84,202,069 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 84,202,069.
Example:
1 x 84,202,069 = 84,202,069
and
-1 x -84,202,069 = 84,202,069
Notice both answers equal 84,202,069
With that explanation out of the way, let's continue. Next, we take the number 84,202,069 and divide it by 2:
84,202,069 ÷ 2 = 42,101,034.5
If the quotient is a whole number, then 2 and 42,101,034.5 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 | 84,202,069 | |
| -1 | -84,202,069 |
Now, we try dividing 84,202,069 by 3:
84,202,069 ÷ 3 = 28,067,356.3333
If the quotient is a whole number, then 3 and 28,067,356.3333 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 | 84,202,069 | |
| -1 | -84,202,069 |
Let's try dividing by 4:
84,202,069 ÷ 4 = 21,050,517.25
If the quotient is a whole number, then 4 and 21,050,517.25 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 | 84,202,069 | |
| -1 | 84,202,069 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 73 | 287 | 511 | 2,993 | 4,019 | 20,951 | 28,133 | 164,779 | 293,387 | 1,153,453 | 2,053,709 | 12,028,867 | 84,202,069 |
| -1 | -7 | -41 | -73 | -287 | -511 | -2,993 | -4,019 | -20,951 | -28,133 | -164,779 | -293,387 | -1,153,453 | -2,053,709 | -12,028,867 | -84,202,069 |
Here are some more numbers to try:
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