A:
Positive:
1 x 24311140113 x 1870087747 x 5172583127 x 1914263169 x 1438529241 x 1008761611 x 3978911651 x 1472513133 x 775975969 x 407297943 x 3060711327 x 21463
Negative:
-1 x -243111401-13 x -18700877-47 x -5172583-127 x -1914263-169 x -1438529-241 x -1008761-611 x -397891-1651 x -147251-3133 x -77597-5969 x -40729-7943 x -30607-11327 x -21463
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 243,111,401, 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 | 243,111,401 | |
| -1 | -243,111,401 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 243,111,401.
Example:
1 x 243,111,401 = 243,111,401
and
-1 x -243,111,401 = 243,111,401
Notice both answers equal 243,111,401
With that explanation out of the way, let's continue. Next, we take the number 243,111,401 and divide it by 2:
243,111,401 ÷ 2 = 121,555,700.5
If the quotient is a whole number, then 2 and 121,555,700.5 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 | 243,111,401 | |
| -1 | -243,111,401 |
Now, we try dividing 243,111,401 by 3:
243,111,401 ÷ 3 = 81,037,133.6667
If the quotient is a whole number, then 3 and 81,037,133.6667 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 | 243,111,401 | |
| -1 | -243,111,401 |
Let's try dividing by 4:
243,111,401 ÷ 4 = 60,777,850.25
If the quotient is a whole number, then 4 and 60,777,850.25 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 | 243,111,401 | |
| -1 | 243,111,401 |
If you did it right, you will end up with this table:
| 1 | 13 | 47 | 127 | 169 | 241 | 611 | 1,651 | 3,133 | 5,969 | 7,943 | 11,327 | 21,463 | 30,607 | 40,729 | 77,597 | 147,251 | 397,891 | 1,008,761 | 1,438,529 | 1,914,263 | 5,172,583 | 18,700,877 | 243,111,401 |
| -1 | -13 | -47 | -127 | -169 | -241 | -611 | -1,651 | -3,133 | -5,969 | -7,943 | -11,327 | -21,463 | -30,607 | -40,729 | -77,597 | -147,251 | -397,891 | -1,008,761 | -1,438,529 | -1,914,263 | -5,172,583 | -18,700,877 | -243,111,401 |
Here are some more numbers to try:
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