A:
Positive:
1 x 31435555 x 62871117 x 18491531 x 10140585 x 36983155 x 20281527 x 59651193 x 2635
Negative:
-1 x -3143555-5 x -628711-17 x -184915-31 x -101405-85 x -36983-155 x -20281-527 x -5965-1193 x -2635
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 3,143,555, 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 | 3,143,555 | |
| -1 | -3,143,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,143,555.
Example:
1 x 3,143,555 = 3,143,555
and
-1 x -3,143,555 = 3,143,555
Notice both answers equal 3,143,555
With that explanation out of the way, let's continue. Next, we take the number 3,143,555 and divide it by 2:
3,143,555 ÷ 2 = 1,571,777.5
If the quotient is a whole number, then 2 and 1,571,777.5 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 | 3,143,555 | |
| -1 | -3,143,555 |
Now, we try dividing 3,143,555 by 3:
3,143,555 ÷ 3 = 1,047,851.6667
If the quotient is a whole number, then 3 and 1,047,851.6667 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 | 3,143,555 | |
| -1 | -3,143,555 |
Let's try dividing by 4:
3,143,555 ÷ 4 = 785,888.75
If the quotient is a whole number, then 4 and 785,888.75 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 | 3,143,555 | |
| -1 | 3,143,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 31 | 85 | 155 | 527 | 1,193 | 2,635 | 5,965 | 20,281 | 36,983 | 101,405 | 184,915 | 628,711 | 3,143,555 |
| -1 | -5 | -17 | -31 | -85 | -155 | -527 | -1,193 | -2,635 | -5,965 | -20,281 | -36,983 | -101,405 | -184,915 | -628,711 | -3,143,555 |
Here are some more numbers to try:
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