A:
Positive:
1 x 155173455 x 310346917 x 91278585 x 182557311 x 49895587 x 264351555 x 99792935 x 5287
Negative:
-1 x -15517345-5 x -3103469-17 x -912785-85 x -182557-311 x -49895-587 x -26435-1555 x -9979-2935 x -5287
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 15,517,345, 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 | 15,517,345 | |
| -1 | -15,517,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,517,345.
Example:
1 x 15,517,345 = 15,517,345
and
-1 x -15,517,345 = 15,517,345
Notice both answers equal 15,517,345
With that explanation out of the way, let's continue. Next, we take the number 15,517,345 and divide it by 2:
15,517,345 ÷ 2 = 7,758,672.5
If the quotient is a whole number, then 2 and 7,758,672.5 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 | 15,517,345 | |
| -1 | -15,517,345 |
Now, we try dividing 15,517,345 by 3:
15,517,345 ÷ 3 = 5,172,448.3333
If the quotient is a whole number, then 3 and 5,172,448.3333 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 | 15,517,345 | |
| -1 | -15,517,345 |
Let's try dividing by 4:
15,517,345 ÷ 4 = 3,879,336.25
If the quotient is a whole number, then 4 and 3,879,336.25 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 | 15,517,345 | |
| -1 | 15,517,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 311 | 587 | 1,555 | 2,935 | 5,287 | 9,979 | 26,435 | 49,895 | 182,557 | 912,785 | 3,103,469 | 15,517,345 |
| -1 | -5 | -17 | -85 | -311 | -587 | -1,555 | -2,935 | -5,287 | -9,979 | -26,435 | -49,895 | -182,557 | -912,785 | -3,103,469 | -15,517,345 |
Here are some more numbers to try:
Try the factor calculator