A:
Positive:
1 x 203453117 x 290647317 x 119678389 x 228599113 x 180047119 x 170969289 x 70399623 x 32657791 x 257211513 x 134471921 x 105912023 x 10057
Negative:
-1 x -20345311-7 x -2906473-17 x -1196783-89 x -228599-113 x -180047-119 x -170969-289 x -70399-623 x -32657-791 x -25721-1513 x -13447-1921 x -10591-2023 x -10057
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 20,345,311, 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 | 20,345,311 | |
| -1 | -20,345,311 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,345,311.
Example:
1 x 20,345,311 = 20,345,311
and
-1 x -20,345,311 = 20,345,311
Notice both answers equal 20,345,311
With that explanation out of the way, let's continue. Next, we take the number 20,345,311 and divide it by 2:
20,345,311 ÷ 2 = 10,172,655.5
If the quotient is a whole number, then 2 and 10,172,655.5 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 | 20,345,311 | |
| -1 | -20,345,311 |
Now, we try dividing 20,345,311 by 3:
20,345,311 ÷ 3 = 6,781,770.3333
If the quotient is a whole number, then 3 and 6,781,770.3333 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 | 20,345,311 | |
| -1 | -20,345,311 |
Let's try dividing by 4:
20,345,311 ÷ 4 = 5,086,327.75
If the quotient is a whole number, then 4 and 5,086,327.75 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 | 20,345,311 | |
| -1 | 20,345,311 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 89 | 113 | 119 | 289 | 623 | 791 | 1,513 | 1,921 | 2,023 | 10,057 | 10,591 | 13,447 | 25,721 | 32,657 | 70,399 | 170,969 | 180,047 | 228,599 | 1,196,783 | 2,906,473 | 20,345,311 |
| -1 | -7 | -17 | -89 | -113 | -119 | -289 | -623 | -791 | -1,513 | -1,921 | -2,023 | -10,057 | -10,591 | -13,447 | -25,721 | -32,657 | -70,399 | -170,969 | -180,047 | -228,599 | -1,196,783 | -2,906,473 | -20,345,311 |
Here are some more numbers to try:
Try the factor calculator