A:
Positive:
1 x 1500526729 x 51742347 x 319261101 x 148567109 x 1376631363 x 110092929 x 51233161 x 4747
Negative:
-1 x -15005267-29 x -517423-47 x -319261-101 x -148567-109 x -137663-1363 x -11009-2929 x -5123-3161 x -4747
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 15,005,267, 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 | 15,005,267 | |
| -1 | -15,005,267 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,005,267.
Example:
1 x 15,005,267 = 15,005,267
and
-1 x -15,005,267 = 15,005,267
Notice both answers equal 15,005,267
With that explanation out of the way, let's continue. Next, we take the number 15,005,267 and divide it by 2:
15,005,267 ÷ 2 = 7,502,633.5
If the quotient is a whole number, then 2 and 7,502,633.5 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 | 15,005,267 | |
| -1 | -15,005,267 |
Now, we try dividing 15,005,267 by 3:
15,005,267 ÷ 3 = 5,001,755.6667
If the quotient is a whole number, then 3 and 5,001,755.6667 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 | 15,005,267 | |
| -1 | -15,005,267 |
Let's try dividing by 4:
15,005,267 ÷ 4 = 3,751,316.75
If the quotient is a whole number, then 4 and 3,751,316.75 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 | 15,005,267 | |
| -1 | 15,005,267 |
If you did it right, you will end up with this table:
| 1 | 29 | 47 | 101 | 109 | 1,363 | 2,929 | 3,161 | 4,747 | 5,123 | 11,009 | 137,663 | 148,567 | 319,261 | 517,423 | 15,005,267 |
| -1 | -29 | -47 | -101 | -109 | -1,363 | -2,929 | -3,161 | -4,747 | -5,123 | -11,009 | -137,663 | -148,567 | -319,261 | -517,423 | -15,005,267 |
Here are some more numbers to try:
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