A:
Positive:
1 x 154095711 x 14008719 x 8110373 x 21109101 x 15257209 x 7373803 x 19191111 x 1387
Negative:
-1 x -1540957-11 x -140087-19 x -81103-73 x -21109-101 x -15257-209 x -7373-803 x -1919-1111 x -1387
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 1,540,957, 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 | 1,540,957 | |
| -1 | -1,540,957 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,540,957.
Example:
1 x 1,540,957 = 1,540,957
and
-1 x -1,540,957 = 1,540,957
Notice both answers equal 1,540,957
With that explanation out of the way, let's continue. Next, we take the number 1,540,957 and divide it by 2:
1,540,957 ÷ 2 = 770,478.5
If the quotient is a whole number, then 2 and 770,478.5 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 | 1,540,957 | |
| -1 | -1,540,957 |
Now, we try dividing 1,540,957 by 3:
1,540,957 ÷ 3 = 513,652.3333
If the quotient is a whole number, then 3 and 513,652.3333 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 | 1,540,957 | |
| -1 | -1,540,957 |
Let's try dividing by 4:
1,540,957 ÷ 4 = 385,239.25
If the quotient is a whole number, then 4 and 385,239.25 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 | 1,540,957 | |
| -1 | 1,540,957 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 73 | 101 | 209 | 803 | 1,111 | 1,387 | 1,919 | 7,373 | 15,257 | 21,109 | 81,103 | 140,087 | 1,540,957 |
| -1 | -11 | -19 | -73 | -101 | -209 | -803 | -1,111 | -1,387 | -1,919 | -7,373 | -15,257 | -21,109 | -81,103 | -140,087 | -1,540,957 |
Here are some more numbers to try:
Try the factor calculator