A:
Positive:
1 x 29713455 x 59426913 x 22856517 x 17478565 x 4571385 x 34957221 x 134451105 x 2689
Negative:
-1 x -2971345-5 x -594269-13 x -228565-17 x -174785-65 x -45713-85 x -34957-221 x -13445-1105 x -2689
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 2,971,345, 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 | 2,971,345 | |
| -1 | -2,971,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,971,345.
Example:
1 x 2,971,345 = 2,971,345
and
-1 x -2,971,345 = 2,971,345
Notice both answers equal 2,971,345
With that explanation out of the way, let's continue. Next, we take the number 2,971,345 and divide it by 2:
2,971,345 ÷ 2 = 1,485,672.5
If the quotient is a whole number, then 2 and 1,485,672.5 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 | 2,971,345 | |
| -1 | -2,971,345 |
Now, we try dividing 2,971,345 by 3:
2,971,345 ÷ 3 = 990,448.3333
If the quotient is a whole number, then 3 and 990,448.3333 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 | 2,971,345 | |
| -1 | -2,971,345 |
Let's try dividing by 4:
2,971,345 ÷ 4 = 742,836.25
If the quotient is a whole number, then 4 and 742,836.25 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 | 2,971,345 | |
| -1 | 2,971,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 17 | 65 | 85 | 221 | 1,105 | 2,689 | 13,445 | 34,957 | 45,713 | 174,785 | 228,565 | 594,269 | 2,971,345 |
| -1 | -5 | -13 | -17 | -65 | -85 | -221 | -1,105 | -2,689 | -13,445 | -34,957 | -45,713 | -174,785 | -228,565 | -594,269 | -2,971,345 |
Here are some more numbers to try:
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