A:
Positive:
1 x 151568697 x 216526713 x 116591391 x 166559193 x 78533863 x 175631351 x 112192509 x 6041
Negative:
-1 x -15156869-7 x -2165267-13 x -1165913-91 x -166559-193 x -78533-863 x -17563-1351 x -11219-2509 x -6041
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 15,156,869, 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 | 15,156,869 | |
| -1 | -15,156,869 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,156,869.
Example:
1 x 15,156,869 = 15,156,869
and
-1 x -15,156,869 = 15,156,869
Notice both answers equal 15,156,869
With that explanation out of the way, let's continue. Next, we take the number 15,156,869 and divide it by 2:
15,156,869 ÷ 2 = 7,578,434.5
If the quotient is a whole number, then 2 and 7,578,434.5 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 | 15,156,869 | |
| -1 | -15,156,869 |
Now, we try dividing 15,156,869 by 3:
15,156,869 ÷ 3 = 5,052,289.6667
If the quotient is a whole number, then 3 and 5,052,289.6667 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 | 15,156,869 | |
| -1 | -15,156,869 |
Let's try dividing by 4:
15,156,869 ÷ 4 = 3,789,217.25
If the quotient is a whole number, then 4 and 3,789,217.25 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 | 15,156,869 | |
| -1 | 15,156,869 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 193 | 863 | 1,351 | 2,509 | 6,041 | 11,219 | 17,563 | 78,533 | 166,559 | 1,165,913 | 2,165,267 | 15,156,869 |
| -1 | -7 | -13 | -91 | -193 | -863 | -1,351 | -2,509 | -6,041 | -11,219 | -17,563 | -78,533 | -166,559 | -1,165,913 | -2,165,267 | -15,156,869 |
Here are some more numbers to try:
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