A:
Positive:
1 x 382409955 x 764819913 x 294161529 x 131865565 x 588323145 x 263731377 x 1014351885 x 20287
Negative:
-1 x -38240995-5 x -7648199-13 x -2941615-29 x -1318655-65 x -588323-145 x -263731-377 x -101435-1885 x -20287
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 38,240,995, 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 | 38,240,995 | |
| -1 | -38,240,995 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,240,995.
Example:
1 x 38,240,995 = 38,240,995
and
-1 x -38,240,995 = 38,240,995
Notice both answers equal 38,240,995
With that explanation out of the way, let's continue. Next, we take the number 38,240,995 and divide it by 2:
38,240,995 ÷ 2 = 19,120,497.5
If the quotient is a whole number, then 2 and 19,120,497.5 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 | 38,240,995 | |
| -1 | -38,240,995 |
Now, we try dividing 38,240,995 by 3:
38,240,995 ÷ 3 = 12,746,998.3333
If the quotient is a whole number, then 3 and 12,746,998.3333 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 | 38,240,995 | |
| -1 | -38,240,995 |
Let's try dividing by 4:
38,240,995 ÷ 4 = 9,560,248.75
If the quotient is a whole number, then 4 and 9,560,248.75 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 | 38,240,995 | |
| -1 | 38,240,995 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 29 | 65 | 145 | 377 | 1,885 | 20,287 | 101,435 | 263,731 | 588,323 | 1,318,655 | 2,941,615 | 7,648,199 | 38,240,995 |
| -1 | -5 | -13 | -29 | -65 | -145 | -377 | -1,885 | -20,287 | -101,435 | -263,731 | -588,323 | -1,318,655 | -2,941,615 | -7,648,199 | -38,240,995 |
Here are some more numbers to try:
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