A:
Positive:
1 x 15500877 x 22144111 x 14091741 x 3780777 x 20131287 x 5401451 x 3437491 x 3157
Negative:
-1 x -1550087-7 x -221441-11 x -140917-41 x -37807-77 x -20131-287 x -5401-451 x -3437-491 x -3157
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 1,550,087, 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 | 1,550,087 | |
| -1 | -1,550,087 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,550,087.
Example:
1 x 1,550,087 = 1,550,087
and
-1 x -1,550,087 = 1,550,087
Notice both answers equal 1,550,087
With that explanation out of the way, let's continue. Next, we take the number 1,550,087 and divide it by 2:
1,550,087 ÷ 2 = 775,043.5
If the quotient is a whole number, then 2 and 775,043.5 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 | 1,550,087 | |
| -1 | -1,550,087 |
Now, we try dividing 1,550,087 by 3:
1,550,087 ÷ 3 = 516,695.6667
If the quotient is a whole number, then 3 and 516,695.6667 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 | 1,550,087 | |
| -1 | -1,550,087 |
Let's try dividing by 4:
1,550,087 ÷ 4 = 387,521.75
If the quotient is a whole number, then 4 and 387,521.75 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 | 1,550,087 | |
| -1 | 1,550,087 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 41 | 77 | 287 | 451 | 491 | 3,157 | 3,437 | 5,401 | 20,131 | 37,807 | 140,917 | 221,441 | 1,550,087 |
| -1 | -7 | -11 | -41 | -77 | -287 | -451 | -491 | -3,157 | -3,437 | -5,401 | -20,131 | -37,807 | -140,917 | -221,441 | -1,550,087 |
Here are some more numbers to try:
Try the factor calculator