A:
Positive:
1 x 387503955 x 775007917 x 227943585 x 455887643 x 60265709 x 546553215 x 120533545 x 10931
Negative:
-1 x -38750395-5 x -7750079-17 x -2279435-85 x -455887-643 x -60265-709 x -54655-3215 x -12053-3545 x -10931
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 38,750,395, 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 | 38,750,395 | |
| -1 | -38,750,395 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,750,395.
Example:
1 x 38,750,395 = 38,750,395
and
-1 x -38,750,395 = 38,750,395
Notice both answers equal 38,750,395
With that explanation out of the way, let's continue. Next, we take the number 38,750,395 and divide it by 2:
38,750,395 ÷ 2 = 19,375,197.5
If the quotient is a whole number, then 2 and 19,375,197.5 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 | 38,750,395 | |
| -1 | -38,750,395 |
Now, we try dividing 38,750,395 by 3:
38,750,395 ÷ 3 = 12,916,798.3333
If the quotient is a whole number, then 3 and 12,916,798.3333 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 | 38,750,395 | |
| -1 | -38,750,395 |
Let's try dividing by 4:
38,750,395 ÷ 4 = 9,687,598.75
If the quotient is a whole number, then 4 and 9,687,598.75 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 | 38,750,395 | |
| -1 | 38,750,395 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 643 | 709 | 3,215 | 3,545 | 10,931 | 12,053 | 54,655 | 60,265 | 455,887 | 2,279,435 | 7,750,079 | 38,750,395 |
| -1 | -5 | -17 | -85 | -643 | -709 | -3,215 | -3,545 | -10,931 | -12,053 | -54,655 | -60,265 | -455,887 | -2,279,435 | -7,750,079 | -38,750,395 |
Here are some more numbers to try:
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