A:
Positive:
1 x 152954277 x 218506117 x 89973179 x 193613119 x 128533553 x 276591343 x 113891627 x 9401
Negative:
-1 x -15295427-7 x -2185061-17 x -899731-79 x -193613-119 x -128533-553 x -27659-1343 x -11389-1627 x -9401
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 15,295,427, 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 | 15,295,427 | |
| -1 | -15,295,427 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,295,427.
Example:
1 x 15,295,427 = 15,295,427
and
-1 x -15,295,427 = 15,295,427
Notice both answers equal 15,295,427
With that explanation out of the way, let's continue. Next, we take the number 15,295,427 and divide it by 2:
15,295,427 ÷ 2 = 7,647,713.5
If the quotient is a whole number, then 2 and 7,647,713.5 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 | 15,295,427 | |
| -1 | -15,295,427 |
Now, we try dividing 15,295,427 by 3:
15,295,427 ÷ 3 = 5,098,475.6667
If the quotient is a whole number, then 3 and 5,098,475.6667 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 | 15,295,427 | |
| -1 | -15,295,427 |
Let's try dividing by 4:
15,295,427 ÷ 4 = 3,823,856.75
If the quotient is a whole number, then 4 and 3,823,856.75 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 | 15,295,427 | |
| -1 | 15,295,427 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 79 | 119 | 553 | 1,343 | 1,627 | 9,401 | 11,389 | 27,659 | 128,533 | 193,613 | 899,731 | 2,185,061 | 15,295,427 |
| -1 | -7 | -17 | -79 | -119 | -553 | -1,343 | -1,627 | -9,401 | -11,389 | -27,659 | -128,533 | -193,613 | -899,731 | -2,185,061 | -15,295,427 |
Here are some more numbers to try:
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