A:
Positive:
1 x 31713555 x 63427111 x 28830523 x 13788555 x 57661109 x 29095115 x 27577253 x 12535529 x 5995545 x 58191199 x 26451265 x 2507
Negative:
-1 x -3171355-5 x -634271-11 x -288305-23 x -137885-55 x -57661-109 x -29095-115 x -27577-253 x -12535-529 x -5995-545 x -5819-1199 x -2645-1265 x -2507
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 3,171,355, 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 | 3,171,355 | |
| -1 | -3,171,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,171,355.
Example:
1 x 3,171,355 = 3,171,355
and
-1 x -3,171,355 = 3,171,355
Notice both answers equal 3,171,355
With that explanation out of the way, let's continue. Next, we take the number 3,171,355 and divide it by 2:
3,171,355 ÷ 2 = 1,585,677.5
If the quotient is a whole number, then 2 and 1,585,677.5 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 | 3,171,355 | |
| -1 | -3,171,355 |
Now, we try dividing 3,171,355 by 3:
3,171,355 ÷ 3 = 1,057,118.3333
If the quotient is a whole number, then 3 and 1,057,118.3333 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 | 3,171,355 | |
| -1 | -3,171,355 |
Let's try dividing by 4:
3,171,355 ÷ 4 = 792,838.75
If the quotient is a whole number, then 4 and 792,838.75 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 | 3,171,355 | |
| -1 | 3,171,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 23 | 55 | 109 | 115 | 253 | 529 | 545 | 1,199 | 1,265 | 2,507 | 2,645 | 5,819 | 5,995 | 12,535 | 27,577 | 29,095 | 57,661 | 137,885 | 288,305 | 634,271 | 3,171,355 |
| -1 | -5 | -11 | -23 | -55 | -109 | -115 | -253 | -529 | -545 | -1,199 | -1,265 | -2,507 | -2,645 | -5,819 | -5,995 | -12,535 | -27,577 | -29,095 | -57,661 | -137,885 | -288,305 | -634,271 | -3,171,355 |
Here are some more numbers to try:
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