A:
Positive:
1 x 298206555 x 596413183 x 359285181 x 164755397 x 75115415 x 71857905 x 329511985 x 15023
Negative:
-1 x -29820655-5 x -5964131-83 x -359285-181 x -164755-397 x -75115-415 x -71857-905 x -32951-1985 x -15023
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 29,820,655, 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 | 29,820,655 | |
| -1 | -29,820,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 29,820,655.
Example:
1 x 29,820,655 = 29,820,655
and
-1 x -29,820,655 = 29,820,655
Notice both answers equal 29,820,655
With that explanation out of the way, let's continue. Next, we take the number 29,820,655 and divide it by 2:
29,820,655 ÷ 2 = 14,910,327.5
If the quotient is a whole number, then 2 and 14,910,327.5 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 | 29,820,655 | |
| -1 | -29,820,655 |
Now, we try dividing 29,820,655 by 3:
29,820,655 ÷ 3 = 9,940,218.3333
If the quotient is a whole number, then 3 and 9,940,218.3333 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 | 29,820,655 | |
| -1 | -29,820,655 |
Let's try dividing by 4:
29,820,655 ÷ 4 = 7,455,163.75
If the quotient is a whole number, then 4 and 7,455,163.75 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 | 29,820,655 | |
| -1 | 29,820,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 181 | 397 | 415 | 905 | 1,985 | 15,023 | 32,951 | 71,857 | 75,115 | 164,755 | 359,285 | 5,964,131 | 29,820,655 |
| -1 | -5 | -83 | -181 | -397 | -415 | -905 | -1,985 | -15,023 | -32,951 | -71,857 | -75,115 | -164,755 | -359,285 | -5,964,131 | -29,820,655 |
Here are some more numbers to try:
Try the factor calculator