A:
Positive:
1 x 10413022113 x 801001759 x 1764919127 x 819923767 x 1357631069 x 974091651 x 630717493 x 13897
Negative:
-1 x -104130221-13 x -8010017-59 x -1764919-127 x -819923-767 x -135763-1069 x -97409-1651 x -63071-7493 x -13897
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 104,130,221, 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 | 104,130,221 | |
| -1 | -104,130,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 104,130,221.
Example:
1 x 104,130,221 = 104,130,221
and
-1 x -104,130,221 = 104,130,221
Notice both answers equal 104,130,221
With that explanation out of the way, let's continue. Next, we take the number 104,130,221 and divide it by 2:
104,130,221 ÷ 2 = 52,065,110.5
If the quotient is a whole number, then 2 and 52,065,110.5 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 | 104,130,221 | |
| -1 | -104,130,221 |
Now, we try dividing 104,130,221 by 3:
104,130,221 ÷ 3 = 34,710,073.6667
If the quotient is a whole number, then 3 and 34,710,073.6667 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 | 104,130,221 | |
| -1 | -104,130,221 |
Let's try dividing by 4:
104,130,221 ÷ 4 = 26,032,555.25
If the quotient is a whole number, then 4 and 26,032,555.25 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 | 104,130,221 | |
| -1 | 104,130,221 |
If you did it right, you will end up with this table:
| 1 | 13 | 59 | 127 | 767 | 1,069 | 1,651 | 7,493 | 13,897 | 63,071 | 97,409 | 135,763 | 819,923 | 1,764,919 | 8,010,017 | 104,130,221 |
| -1 | -13 | -59 | -127 | -767 | -1,069 | -1,651 | -7,493 | -13,897 | -63,071 | -97,409 | -135,763 | -819,923 | -1,764,919 | -8,010,017 | -104,130,221 |
Here are some more numbers to try:
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