A:
Positive:
1 x 19850155 x 39700323 x 8630541 x 48415115 x 17261205 x 9683421 x 4715943 x 2105
Negative:
-1 x -1985015-5 x -397003-23 x -86305-41 x -48415-115 x -17261-205 x -9683-421 x -4715-943 x -2105
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 1,985,015, 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 | 1,985,015 | |
| -1 | -1,985,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,985,015.
Example:
1 x 1,985,015 = 1,985,015
and
-1 x -1,985,015 = 1,985,015
Notice both answers equal 1,985,015
With that explanation out of the way, let's continue. Next, we take the number 1,985,015 and divide it by 2:
1,985,015 ÷ 2 = 992,507.5
If the quotient is a whole number, then 2 and 992,507.5 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 | 1,985,015 | |
| -1 | -1,985,015 |
Now, we try dividing 1,985,015 by 3:
1,985,015 ÷ 3 = 661,671.6667
If the quotient is a whole number, then 3 and 661,671.6667 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 | 1,985,015 | |
| -1 | -1,985,015 |
Let's try dividing by 4:
1,985,015 ÷ 4 = 496,253.75
If the quotient is a whole number, then 4 and 496,253.75 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 | 1,985,015 | |
| -1 | 1,985,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 41 | 115 | 205 | 421 | 943 | 2,105 | 4,715 | 9,683 | 17,261 | 48,415 | 86,305 | 397,003 | 1,985,015 |
| -1 | -5 | -23 | -41 | -115 | -205 | -421 | -943 | -2,105 | -4,715 | -9,683 | -17,261 | -48,415 | -86,305 | -397,003 | -1,985,015 |
Here are some more numbers to try:
Try the factor calculator