A:
Positive:
1 x 8302661913 x 638666323 x 360985371 x 1169389299 x 277681923 x 899531633 x 508433911 x 21229
Negative:
-1 x -83026619-13 x -6386663-23 x -3609853-71 x -1169389-299 x -277681-923 x -89953-1633 x -50843-3911 x -21229
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 83,026,619, 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 | 83,026,619 | |
| -1 | -83,026,619 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 83,026,619.
Example:
1 x 83,026,619 = 83,026,619
and
-1 x -83,026,619 = 83,026,619
Notice both answers equal 83,026,619
With that explanation out of the way, let's continue. Next, we take the number 83,026,619 and divide it by 2:
83,026,619 ÷ 2 = 41,513,309.5
If the quotient is a whole number, then 2 and 41,513,309.5 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 | 83,026,619 | |
| -1 | -83,026,619 |
Now, we try dividing 83,026,619 by 3:
83,026,619 ÷ 3 = 27,675,539.6667
If the quotient is a whole number, then 3 and 27,675,539.6667 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 | 83,026,619 | |
| -1 | -83,026,619 |
Let's try dividing by 4:
83,026,619 ÷ 4 = 20,756,654.75
If the quotient is a whole number, then 4 and 20,756,654.75 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 | 83,026,619 | |
| -1 | 83,026,619 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 71 | 299 | 923 | 1,633 | 3,911 | 21,229 | 50,843 | 89,953 | 277,681 | 1,169,389 | 3,609,853 | 6,386,663 | 83,026,619 |
| -1 | -13 | -23 | -71 | -299 | -923 | -1,633 | -3,911 | -21,229 | -50,843 | -89,953 | -277,681 | -1,169,389 | -3,609,853 | -6,386,663 | -83,026,619 |
Here are some more numbers to try:
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