A:
Positive:
1 x 1562715055 x 3125430113 x 1202088565 x 2404177643 x 2430353215 x 486073739 x 417958359 x 18695
Negative:
-1 x -156271505-5 x -31254301-13 x -12020885-65 x -2404177-643 x -243035-3215 x -48607-3739 x -41795-8359 x -18695
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 156,271,505, 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 | 156,271,505 | |
| -1 | -156,271,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,271,505.
Example:
1 x 156,271,505 = 156,271,505
and
-1 x -156,271,505 = 156,271,505
Notice both answers equal 156,271,505
With that explanation out of the way, let's continue. Next, we take the number 156,271,505 and divide it by 2:
156,271,505 ÷ 2 = 78,135,752.5
If the quotient is a whole number, then 2 and 78,135,752.5 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 | 156,271,505 | |
| -1 | -156,271,505 |
Now, we try dividing 156,271,505 by 3:
156,271,505 ÷ 3 = 52,090,501.6667
If the quotient is a whole number, then 3 and 52,090,501.6667 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 | 156,271,505 | |
| -1 | -156,271,505 |
Let's try dividing by 4:
156,271,505 ÷ 4 = 39,067,876.25
If the quotient is a whole number, then 4 and 39,067,876.25 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 | 156,271,505 | |
| -1 | 156,271,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 643 | 3,215 | 3,739 | 8,359 | 18,695 | 41,795 | 48,607 | 243,035 | 2,404,177 | 12,020,885 | 31,254,301 | 156,271,505 |
| -1 | -5 | -13 | -65 | -643 | -3,215 | -3,739 | -8,359 | -18,695 | -41,795 | -48,607 | -243,035 | -2,404,177 | -12,020,885 | -31,254,301 | -156,271,505 |
Here are some more numbers to try:
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