A:
Positive:
1 x 28372155 x 56744317 x 16689529 x 9783585 x 33379145 x 19567493 x 57551151 x 2465
Negative:
-1 x -2837215-5 x -567443-17 x -166895-29 x -97835-85 x -33379-145 x -19567-493 x -5755-1151 x -2465
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 2,837,215, 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 | 2,837,215 | |
| -1 | -2,837,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,837,215.
Example:
1 x 2,837,215 = 2,837,215
and
-1 x -2,837,215 = 2,837,215
Notice both answers equal 2,837,215
With that explanation out of the way, let's continue. Next, we take the number 2,837,215 and divide it by 2:
2,837,215 ÷ 2 = 1,418,607.5
If the quotient is a whole number, then 2 and 1,418,607.5 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 | 2,837,215 | |
| -1 | -2,837,215 |
Now, we try dividing 2,837,215 by 3:
2,837,215 ÷ 3 = 945,738.3333
If the quotient is a whole number, then 3 and 945,738.3333 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 | 2,837,215 | |
| -1 | -2,837,215 |
Let's try dividing by 4:
2,837,215 ÷ 4 = 709,303.75
If the quotient is a whole number, then 4 and 709,303.75 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 | 2,837,215 | |
| -1 | 2,837,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 29 | 85 | 145 | 493 | 1,151 | 2,465 | 5,755 | 19,567 | 33,379 | 97,835 | 166,895 | 567,443 | 2,837,215 |
| -1 | -5 | -17 | -29 | -85 | -145 | -493 | -1,151 | -2,465 | -5,755 | -19,567 | -33,379 | -97,835 | -166,895 | -567,443 | -2,837,215 |
Here are some more numbers to try:
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