A:
Positive:
1 x 15613555111 x 1419414113 x 1201042747 x 3322033143 x 1091857169 x 923879517 x 302003611 x 2555411787 x 873731859 x 839896721 x 232317943 x 19657
Negative:
-1 x -156135551-11 x -14194141-13 x -12010427-47 x -3322033-143 x -1091857-169 x -923879-517 x -302003-611 x -255541-1787 x -87373-1859 x -83989-6721 x -23231-7943 x -19657
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 156,135,551, 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 | 156,135,551 | |
| -1 | -156,135,551 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,135,551.
Example:
1 x 156,135,551 = 156,135,551
and
-1 x -156,135,551 = 156,135,551
Notice both answers equal 156,135,551
With that explanation out of the way, let's continue. Next, we take the number 156,135,551 and divide it by 2:
156,135,551 ÷ 2 = 78,067,775.5
If the quotient is a whole number, then 2 and 78,067,775.5 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 | 156,135,551 | |
| -1 | -156,135,551 |
Now, we try dividing 156,135,551 by 3:
156,135,551 ÷ 3 = 52,045,183.6667
If the quotient is a whole number, then 3 and 52,045,183.6667 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 | 156,135,551 | |
| -1 | -156,135,551 |
Let's try dividing by 4:
156,135,551 ÷ 4 = 39,033,887.75
If the quotient is a whole number, then 4 and 39,033,887.75 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 | 156,135,551 | |
| -1 | 156,135,551 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 47 | 143 | 169 | 517 | 611 | 1,787 | 1,859 | 6,721 | 7,943 | 19,657 | 23,231 | 83,989 | 87,373 | 255,541 | 302,003 | 923,879 | 1,091,857 | 3,322,033 | 12,010,427 | 14,194,141 | 156,135,551 |
| -1 | -11 | -13 | -47 | -143 | -169 | -517 | -611 | -1,787 | -1,859 | -6,721 | -7,943 | -19,657 | -23,231 | -83,989 | -87,373 | -255,541 | -302,003 | -923,879 | -1,091,857 | -3,322,033 | -12,010,427 | -14,194,141 | -156,135,551 |
Here are some more numbers to try:
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