A:
Positive:
1 x 1781112555 x 356222517 x 2544446535 x 5088893311 x 5727051555 x 1145412177 x 8181510885 x 16363
Negative:
-1 x -178111255-5 x -35622251-7 x -25444465-35 x -5088893-311 x -572705-1555 x -114541-2177 x -81815-10885 x -16363
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 178,111,255, 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 | 178,111,255 | |
| -1 | -178,111,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 178,111,255.
Example:
1 x 178,111,255 = 178,111,255
and
-1 x -178,111,255 = 178,111,255
Notice both answers equal 178,111,255
With that explanation out of the way, let's continue. Next, we take the number 178,111,255 and divide it by 2:
178,111,255 ÷ 2 = 89,055,627.5
If the quotient is a whole number, then 2 and 89,055,627.5 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 | 178,111,255 | |
| -1 | -178,111,255 |
Now, we try dividing 178,111,255 by 3:
178,111,255 ÷ 3 = 59,370,418.3333
If the quotient is a whole number, then 3 and 59,370,418.3333 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 | 178,111,255 | |
| -1 | -178,111,255 |
Let's try dividing by 4:
178,111,255 ÷ 4 = 44,527,813.75
If the quotient is a whole number, then 4 and 44,527,813.75 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 | 178,111,255 | |
| -1 | 178,111,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 311 | 1,555 | 2,177 | 10,885 | 16,363 | 81,815 | 114,541 | 572,705 | 5,088,893 | 25,444,465 | 35,622,251 | 178,111,255 |
| -1 | -5 | -7 | -35 | -311 | -1,555 | -2,177 | -10,885 | -16,363 | -81,815 | -114,541 | -572,705 | -5,088,893 | -25,444,465 | -35,622,251 | -178,111,255 |
Here are some more numbers to try:
Try the factor calculator