A:
Positive:
1 x 2578776837 x 3683966961 x 422750373 x 3532571427 x 603929511 x 5046534453 x 579118273 x 31171
Negative:
-1 x -257877683-7 x -36839669-61 x -4227503-73 x -3532571-427 x -603929-511 x -504653-4453 x -57911-8273 x -31171
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 257,877,683, 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 | 257,877,683 | |
| -1 | -257,877,683 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 257,877,683.
Example:
1 x 257,877,683 = 257,877,683
and
-1 x -257,877,683 = 257,877,683
Notice both answers equal 257,877,683
With that explanation out of the way, let's continue. Next, we take the number 257,877,683 and divide it by 2:
257,877,683 ÷ 2 = 128,938,841.5
If the quotient is a whole number, then 2 and 128,938,841.5 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 | 257,877,683 | |
| -1 | -257,877,683 |
Now, we try dividing 257,877,683 by 3:
257,877,683 ÷ 3 = 85,959,227.6667
If the quotient is a whole number, then 3 and 85,959,227.6667 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 | 257,877,683 | |
| -1 | -257,877,683 |
Let's try dividing by 4:
257,877,683 ÷ 4 = 64,469,420.75
If the quotient is a whole number, then 4 and 64,469,420.75 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 | 257,877,683 | |
| -1 | 257,877,683 |
If you did it right, you will end up with this table:
| 1 | 7 | 61 | 73 | 427 | 511 | 4,453 | 8,273 | 31,171 | 57,911 | 504,653 | 603,929 | 3,532,571 | 4,227,503 | 36,839,669 | 257,877,683 |
| -1 | -7 | -61 | -73 | -427 | -511 | -4,453 | -8,273 | -31,171 | -57,911 | -504,653 | -603,929 | -3,532,571 | -4,227,503 | -36,839,669 | -257,877,683 |
Here are some more numbers to try:
Try the factor calculator