A:
Positive:
1 x 1234160055 x 2468320117 x 725976585 x 1451953223 x 553435289 x 427045383 x 3222351115 x 1106871445 x 854091915 x 644473791 x 325556511 x 18955
Negative:
-1 x -123416005-5 x -24683201-17 x -7259765-85 x -1451953-223 x -553435-289 x -427045-383 x -322235-1115 x -110687-1445 x -85409-1915 x -64447-3791 x -32555-6511 x -18955
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 123,416,005, 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 | 123,416,005 | |
| -1 | -123,416,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,416,005.
Example:
1 x 123,416,005 = 123,416,005
and
-1 x -123,416,005 = 123,416,005
Notice both answers equal 123,416,005
With that explanation out of the way, let's continue. Next, we take the number 123,416,005 and divide it by 2:
123,416,005 ÷ 2 = 61,708,002.5
If the quotient is a whole number, then 2 and 61,708,002.5 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 | 123,416,005 | |
| -1 | -123,416,005 |
Now, we try dividing 123,416,005 by 3:
123,416,005 ÷ 3 = 41,138,668.3333
If the quotient is a whole number, then 3 and 41,138,668.3333 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 | 123,416,005 | |
| -1 | -123,416,005 |
Let's try dividing by 4:
123,416,005 ÷ 4 = 30,854,001.25
If the quotient is a whole number, then 4 and 30,854,001.25 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 | 123,416,005 | |
| -1 | 123,416,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 223 | 289 | 383 | 1,115 | 1,445 | 1,915 | 3,791 | 6,511 | 18,955 | 32,555 | 64,447 | 85,409 | 110,687 | 322,235 | 427,045 | 553,435 | 1,451,953 | 7,259,765 | 24,683,201 | 123,416,005 |
| -1 | -5 | -17 | -85 | -223 | -289 | -383 | -1,115 | -1,445 | -1,915 | -3,791 | -6,511 | -18,955 | -32,555 | -64,447 | -85,409 | -110,687 | -322,235 | -427,045 | -553,435 | -1,451,953 | -7,259,765 | -24,683,201 | -123,416,005 |
Here are some more numbers to try:
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