A:
Positive:
1 x 153561177 x 219373117 x 90330143 x 357119119 x 129043301 x 51017731 x 210073001 x 5117
Negative:
-1 x -15356117-7 x -2193731-17 x -903301-43 x -357119-119 x -129043-301 x -51017-731 x -21007-3001 x -5117
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 15,356,117, 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 | 15,356,117 | |
| -1 | -15,356,117 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,356,117.
Example:
1 x 15,356,117 = 15,356,117
and
-1 x -15,356,117 = 15,356,117
Notice both answers equal 15,356,117
With that explanation out of the way, let's continue. Next, we take the number 15,356,117 and divide it by 2:
15,356,117 ÷ 2 = 7,678,058.5
If the quotient is a whole number, then 2 and 7,678,058.5 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 | 15,356,117 | |
| -1 | -15,356,117 |
Now, we try dividing 15,356,117 by 3:
15,356,117 ÷ 3 = 5,118,705.6667
If the quotient is a whole number, then 3 and 5,118,705.6667 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 | 15,356,117 | |
| -1 | -15,356,117 |
Let's try dividing by 4:
15,356,117 ÷ 4 = 3,839,029.25
If the quotient is a whole number, then 4 and 3,839,029.25 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 | 15,356,117 | |
| -1 | 15,356,117 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 43 | 119 | 301 | 731 | 3,001 | 5,117 | 21,007 | 51,017 | 129,043 | 357,119 | 903,301 | 2,193,731 | 15,356,117 |
| -1 | -7 | -17 | -43 | -119 | -301 | -731 | -3,001 | -5,117 | -21,007 | -51,017 | -129,043 | -357,119 | -903,301 | -2,193,731 | -15,356,117 |
Here are some more numbers to try:
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