A:
Positive:
1 x 153255137 x 218935941 x 37379367 x 228739287 x 53399469 x 32677797 x 192292747 x 5579
Negative:
-1 x -15325513-7 x -2189359-41 x -373793-67 x -228739-287 x -53399-469 x -32677-797 x -19229-2747 x -5579
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 15,325,513, 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 | 15,325,513 | |
| -1 | -15,325,513 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,325,513.
Example:
1 x 15,325,513 = 15,325,513
and
-1 x -15,325,513 = 15,325,513
Notice both answers equal 15,325,513
With that explanation out of the way, let's continue. Next, we take the number 15,325,513 and divide it by 2:
15,325,513 ÷ 2 = 7,662,756.5
If the quotient is a whole number, then 2 and 7,662,756.5 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 | 15,325,513 | |
| -1 | -15,325,513 |
Now, we try dividing 15,325,513 by 3:
15,325,513 ÷ 3 = 5,108,504.3333
If the quotient is a whole number, then 3 and 5,108,504.3333 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 | 15,325,513 | |
| -1 | -15,325,513 |
Let's try dividing by 4:
15,325,513 ÷ 4 = 3,831,378.25
If the quotient is a whole number, then 4 and 3,831,378.25 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 | 15,325,513 | |
| -1 | 15,325,513 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 67 | 287 | 469 | 797 | 2,747 | 5,579 | 19,229 | 32,677 | 53,399 | 228,739 | 373,793 | 2,189,359 | 15,325,513 |
| -1 | -7 | -41 | -67 | -287 | -469 | -797 | -2,747 | -5,579 | -19,229 | -32,677 | -53,399 | -228,739 | -373,793 | -2,189,359 | -15,325,513 |
Here are some more numbers to try:
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