A:
Positive:
1 x 29285155 x 58570343 x 6810553 x 55255215 x 13621257 x 11395265 x 110511285 x 2279
Negative:
-1 x -2928515-5 x -585703-43 x -68105-53 x -55255-215 x -13621-257 x -11395-265 x -11051-1285 x -2279
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 2,928,515, 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 | 2,928,515 | |
| -1 | -2,928,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,928,515.
Example:
1 x 2,928,515 = 2,928,515
and
-1 x -2,928,515 = 2,928,515
Notice both answers equal 2,928,515
With that explanation out of the way, let's continue. Next, we take the number 2,928,515 and divide it by 2:
2,928,515 ÷ 2 = 1,464,257.5
If the quotient is a whole number, then 2 and 1,464,257.5 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 | 2,928,515 | |
| -1 | -2,928,515 |
Now, we try dividing 2,928,515 by 3:
2,928,515 ÷ 3 = 976,171.6667
If the quotient is a whole number, then 3 and 976,171.6667 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 | 2,928,515 | |
| -1 | -2,928,515 |
Let's try dividing by 4:
2,928,515 ÷ 4 = 732,128.75
If the quotient is a whole number, then 4 and 732,128.75 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 | 2,928,515 | |
| -1 | 2,928,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 53 | 215 | 257 | 265 | 1,285 | 2,279 | 11,051 | 11,395 | 13,621 | 55,255 | 68,105 | 585,703 | 2,928,515 |
| -1 | -5 | -43 | -53 | -215 | -257 | -265 | -1,285 | -2,279 | -11,051 | -11,395 | -13,621 | -55,255 | -68,105 | -585,703 | -2,928,515 |
Here are some more numbers to try:
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