A:
Positive:
1 x 36886437 x 52694917 x 216979119 x 30997139 x 26537223 x 16541973 x 37911561 x 2363
Negative:
-1 x -3688643-7 x -526949-17 x -216979-119 x -30997-139 x -26537-223 x -16541-973 x -3791-1561 x -2363
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 3,688,643, 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 | 3,688,643 | |
| -1 | -3,688,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,688,643.
Example:
1 x 3,688,643 = 3,688,643
and
-1 x -3,688,643 = 3,688,643
Notice both answers equal 3,688,643
With that explanation out of the way, let's continue. Next, we take the number 3,688,643 and divide it by 2:
3,688,643 ÷ 2 = 1,844,321.5
If the quotient is a whole number, then 2 and 1,844,321.5 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 | 3,688,643 | |
| -1 | -3,688,643 |
Now, we try dividing 3,688,643 by 3:
3,688,643 ÷ 3 = 1,229,547.6667
If the quotient is a whole number, then 3 and 1,229,547.6667 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 | 3,688,643 | |
| -1 | -3,688,643 |
Let's try dividing by 4:
3,688,643 ÷ 4 = 922,160.75
If the quotient is a whole number, then 4 and 922,160.75 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 | 3,688,643 | |
| -1 | 3,688,643 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 139 | 223 | 973 | 1,561 | 2,363 | 3,791 | 16,541 | 26,537 | 30,997 | 216,979 | 526,949 | 3,688,643 |
| -1 | -7 | -17 | -119 | -139 | -223 | -973 | -1,561 | -2,363 | -3,791 | -16,541 | -26,537 | -30,997 | -216,979 | -526,949 | -3,688,643 |
Here are some more numbers to try:
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