A:
Positive:
1 x 123815913 x 9524323 x 5383341 x 30199101 x 12259299 x 4141533 x 2323943 x 1313
Negative:
-1 x -1238159-13 x -95243-23 x -53833-41 x -30199-101 x -12259-299 x -4141-533 x -2323-943 x -1313
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 1,238,159, 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 | 1,238,159 | |
| -1 | -1,238,159 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,238,159.
Example:
1 x 1,238,159 = 1,238,159
and
-1 x -1,238,159 = 1,238,159
Notice both answers equal 1,238,159
With that explanation out of the way, let's continue. Next, we take the number 1,238,159 and divide it by 2:
1,238,159 ÷ 2 = 619,079.5
If the quotient is a whole number, then 2 and 619,079.5 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 | 1,238,159 | |
| -1 | -1,238,159 |
Now, we try dividing 1,238,159 by 3:
1,238,159 ÷ 3 = 412,719.6667
If the quotient is a whole number, then 3 and 412,719.6667 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 | 1,238,159 | |
| -1 | -1,238,159 |
Let's try dividing by 4:
1,238,159 ÷ 4 = 309,539.75
If the quotient is a whole number, then 4 and 309,539.75 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 | 1,238,159 | |
| -1 | 1,238,159 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 41 | 101 | 299 | 533 | 943 | 1,313 | 2,323 | 4,141 | 12,259 | 30,199 | 53,833 | 95,243 | 1,238,159 |
| -1 | -13 | -23 | -41 | -101 | -299 | -533 | -943 | -1,313 | -2,323 | -4,141 | -12,259 | -30,199 | -53,833 | -95,243 | -1,238,159 |
Here are some more numbers to try:
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