A:
Positive:
1 x 150831317 x 215473317 x 88724319 x 79384949 x 307819119 x 126749133 x 113407323 x 46697833 x 18107931 x 16201953 x 158272261 x 6671
Negative:
-1 x -15083131-7 x -2154733-17 x -887243-19 x -793849-49 x -307819-119 x -126749-133 x -113407-323 x -46697-833 x -18107-931 x -16201-953 x -15827-2261 x -6671
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 15,083,131, 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 | 15,083,131 | |
| -1 | -15,083,131 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,083,131.
Example:
1 x 15,083,131 = 15,083,131
and
-1 x -15,083,131 = 15,083,131
Notice both answers equal 15,083,131
With that explanation out of the way, let's continue. Next, we take the number 15,083,131 and divide it by 2:
15,083,131 ÷ 2 = 7,541,565.5
If the quotient is a whole number, then 2 and 7,541,565.5 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 | 15,083,131 | |
| -1 | -15,083,131 |
Now, we try dividing 15,083,131 by 3:
15,083,131 ÷ 3 = 5,027,710.3333
If the quotient is a whole number, then 3 and 5,027,710.3333 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 | 15,083,131 | |
| -1 | -15,083,131 |
Let's try dividing by 4:
15,083,131 ÷ 4 = 3,770,782.75
If the quotient is a whole number, then 4 and 3,770,782.75 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 | 15,083,131 | |
| -1 | 15,083,131 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 19 | 49 | 119 | 133 | 323 | 833 | 931 | 953 | 2,261 | 6,671 | 15,827 | 16,201 | 18,107 | 46,697 | 113,407 | 126,749 | 307,819 | 793,849 | 887,243 | 2,154,733 | 15,083,131 |
| -1 | -7 | -17 | -19 | -49 | -119 | -133 | -323 | -833 | -931 | -953 | -2,261 | -6,671 | -15,827 | -16,201 | -18,107 | -46,697 | -113,407 | -126,749 | -307,819 | -793,849 | -887,243 | -2,154,733 | -15,083,131 |
Here are some more numbers to try:
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