A:
Positive:
1 x 153172455 x 306344943 x 356215191 x 80195215 x 71243373 x 41065955 x 160391865 x 8213
Negative:
-1 x -15317245-5 x -3063449-43 x -356215-191 x -80195-215 x -71243-373 x -41065-955 x -16039-1865 x -8213
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 15,317,245, 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 | 15,317,245 | |
| -1 | -15,317,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,317,245.
Example:
1 x 15,317,245 = 15,317,245
and
-1 x -15,317,245 = 15,317,245
Notice both answers equal 15,317,245
With that explanation out of the way, let's continue. Next, we take the number 15,317,245 and divide it by 2:
15,317,245 ÷ 2 = 7,658,622.5
If the quotient is a whole number, then 2 and 7,658,622.5 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 | 15,317,245 | |
| -1 | -15,317,245 |
Now, we try dividing 15,317,245 by 3:
15,317,245 ÷ 3 = 5,105,748.3333
If the quotient is a whole number, then 3 and 5,105,748.3333 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 | 15,317,245 | |
| -1 | -15,317,245 |
Let's try dividing by 4:
15,317,245 ÷ 4 = 3,829,311.25
If the quotient is a whole number, then 4 and 3,829,311.25 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 | 15,317,245 | |
| -1 | 15,317,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 191 | 215 | 373 | 955 | 1,865 | 8,213 | 16,039 | 41,065 | 71,243 | 80,195 | 356,215 | 3,063,449 | 15,317,245 |
| -1 | -5 | -43 | -191 | -215 | -373 | -955 | -1,865 | -8,213 | -16,039 | -41,065 | -71,243 | -80,195 | -356,215 | -3,063,449 | -15,317,245 |
Here are some more numbers to try:
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