A:
Positive:
1 x 1520066911 x 138187917 x 89415729 x 524161187 x 81287319 x 47651493 x 308332803 x 5423
Negative:
-1 x -15200669-11 x -1381879-17 x -894157-29 x -524161-187 x -81287-319 x -47651-493 x -30833-2803 x -5423
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 15,200,669, 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 | 15,200,669 | |
| -1 | -15,200,669 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,200,669.
Example:
1 x 15,200,669 = 15,200,669
and
-1 x -15,200,669 = 15,200,669
Notice both answers equal 15,200,669
With that explanation out of the way, let's continue. Next, we take the number 15,200,669 and divide it by 2:
15,200,669 ÷ 2 = 7,600,334.5
If the quotient is a whole number, then 2 and 7,600,334.5 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 | 15,200,669 | |
| -1 | -15,200,669 |
Now, we try dividing 15,200,669 by 3:
15,200,669 ÷ 3 = 5,066,889.6667
If the quotient is a whole number, then 3 and 5,066,889.6667 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 | 15,200,669 | |
| -1 | -15,200,669 |
Let's try dividing by 4:
15,200,669 ÷ 4 = 3,800,167.25
If the quotient is a whole number, then 4 and 3,800,167.25 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 | 15,200,669 | |
| -1 | 15,200,669 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 29 | 187 | 319 | 493 | 2,803 | 5,423 | 30,833 | 47,651 | 81,287 | 524,161 | 894,157 | 1,381,879 | 15,200,669 |
| -1 | -11 | -17 | -29 | -187 | -319 | -493 | -2,803 | -5,423 | -30,833 | -47,651 | -81,287 | -524,161 | -894,157 | -1,381,879 | -15,200,669 |
Here are some more numbers to try:
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