A:
Positive:
1 x 1630615555 x 32612311233 x 6998351165 x 139967
Negative:
-1 x -163061555-5 x -32612311-233 x -699835-1165 x -139967
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 163,061,555, 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 | 163,061,555 | |
| -1 | -163,061,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,061,555.
Example:
1 x 163,061,555 = 163,061,555
and
-1 x -163,061,555 = 163,061,555
Notice both answers equal 163,061,555
With that explanation out of the way, let's continue. Next, we take the number 163,061,555 and divide it by 2:
163,061,555 ÷ 2 = 81,530,777.5
If the quotient is a whole number, then 2 and 81,530,777.5 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 | 163,061,555 | |
| -1 | -163,061,555 |
Now, we try dividing 163,061,555 by 3:
163,061,555 ÷ 3 = 54,353,851.6667
If the quotient is a whole number, then 3 and 54,353,851.6667 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 | 163,061,555 | |
| -1 | -163,061,555 |
Let's try dividing by 4:
163,061,555 ÷ 4 = 40,765,388.75
If the quotient is a whole number, then 4 and 40,765,388.75 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 | 163,061,555 | |
| -1 | 163,061,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 233 | 1,165 | 139,967 | 699,835 | 32,612,311 | 163,061,555 |
| -1 | -5 | -233 | -1,165 | -139,967 | -699,835 | -32,612,311 | -163,061,555 |
Here are some more numbers to try:
Try the factor calculator