A:
Positive:
1 x 153635655 x 30727137 x 219479535 x 438959163 x 94255815 x 188511141 x 134652693 x 5705
Negative:
-1 x -15363565-5 x -3072713-7 x -2194795-35 x -438959-163 x -94255-815 x -18851-1141 x -13465-2693 x -5705
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 15,363,565, 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 | 15,363,565 | |
| -1 | -15,363,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,363,565.
Example:
1 x 15,363,565 = 15,363,565
and
-1 x -15,363,565 = 15,363,565
Notice both answers equal 15,363,565
With that explanation out of the way, let's continue. Next, we take the number 15,363,565 and divide it by 2:
15,363,565 ÷ 2 = 7,681,782.5
If the quotient is a whole number, then 2 and 7,681,782.5 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 | 15,363,565 | |
| -1 | -15,363,565 |
Now, we try dividing 15,363,565 by 3:
15,363,565 ÷ 3 = 5,121,188.3333
If the quotient is a whole number, then 3 and 5,121,188.3333 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 | 15,363,565 | |
| -1 | -15,363,565 |
Let's try dividing by 4:
15,363,565 ÷ 4 = 3,840,891.25
If the quotient is a whole number, then 4 and 3,840,891.25 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 | 15,363,565 | |
| -1 | 15,363,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 163 | 815 | 1,141 | 2,693 | 5,705 | 13,465 | 18,851 | 94,255 | 438,959 | 2,194,795 | 3,072,713 | 15,363,565 |
| -1 | -5 | -7 | -35 | -163 | -815 | -1,141 | -2,693 | -5,705 | -13,465 | -18,851 | -94,255 | -438,959 | -2,194,795 | -3,072,713 | -15,363,565 |
Here are some more numbers to try:
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