A:
Positive:
1 x 2506801577 x 3581145113 x 1928308991 x 2754727971 x 2581672837 x 883616797 x 3688112623 x 19859
Negative:
-1 x -250680157-7 x -35811451-13 x -19283089-91 x -2754727-971 x -258167-2837 x -88361-6797 x -36881-12623 x -19859
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 250,680,157, 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 | 250,680,157 | |
| -1 | -250,680,157 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 250,680,157.
Example:
1 x 250,680,157 = 250,680,157
and
-1 x -250,680,157 = 250,680,157
Notice both answers equal 250,680,157
With that explanation out of the way, let's continue. Next, we take the number 250,680,157 and divide it by 2:
250,680,157 ÷ 2 = 125,340,078.5
If the quotient is a whole number, then 2 and 125,340,078.5 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 | 250,680,157 | |
| -1 | -250,680,157 |
Now, we try dividing 250,680,157 by 3:
250,680,157 ÷ 3 = 83,560,052.3333
If the quotient is a whole number, then 3 and 83,560,052.3333 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 | 250,680,157 | |
| -1 | -250,680,157 |
Let's try dividing by 4:
250,680,157 ÷ 4 = 62,670,039.25
If the quotient is a whole number, then 4 and 62,670,039.25 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 | 250,680,157 | |
| -1 | 250,680,157 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 971 | 2,837 | 6,797 | 12,623 | 19,859 | 36,881 | 88,361 | 258,167 | 2,754,727 | 19,283,089 | 35,811,451 | 250,680,157 |
| -1 | -7 | -13 | -91 | -971 | -2,837 | -6,797 | -12,623 | -19,859 | -36,881 | -88,361 | -258,167 | -2,754,727 | -19,283,089 | -35,811,451 | -250,680,157 |
Here are some more numbers to try:
Try the factor calculator