A:
Positive:
1 x 368922117 x 21701341 x 8998167 x 5506379 x 46699697 x 52931139 x 32391343 x 2747
Negative:
-1 x -3689221-17 x -217013-41 x -89981-67 x -55063-79 x -46699-697 x -5293-1139 x -3239-1343 x -2747
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 3,689,221, 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 | 3,689,221 | |
| -1 | -3,689,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,689,221.
Example:
1 x 3,689,221 = 3,689,221
and
-1 x -3,689,221 = 3,689,221
Notice both answers equal 3,689,221
With that explanation out of the way, let's continue. Next, we take the number 3,689,221 and divide it by 2:
3,689,221 ÷ 2 = 1,844,610.5
If the quotient is a whole number, then 2 and 1,844,610.5 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 | 3,689,221 | |
| -1 | -3,689,221 |
Now, we try dividing 3,689,221 by 3:
3,689,221 ÷ 3 = 1,229,740.3333
If the quotient is a whole number, then 3 and 1,229,740.3333 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 | 3,689,221 | |
| -1 | -3,689,221 |
Let's try dividing by 4:
3,689,221 ÷ 4 = 922,305.25
If the quotient is a whole number, then 4 and 922,305.25 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 | 3,689,221 | |
| -1 | 3,689,221 |
If you did it right, you will end up with this table:
| 1 | 17 | 41 | 67 | 79 | 697 | 1,139 | 1,343 | 2,747 | 3,239 | 5,293 | 46,699 | 55,063 | 89,981 | 217,013 | 3,689,221 |
| -1 | -17 | -41 | -67 | -79 | -697 | -1,139 | -1,343 | -2,747 | -3,239 | -5,293 | -46,699 | -55,063 | -89,981 | -217,013 | -3,689,221 |
Here are some more numbers to try:
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