A:
Positive:
1 x 2472293955 x 494458797 x 3531848535 x 70636971619 x 1527054363 x 566658095 x 3054111333 x 21815
Negative:
-1 x -247229395-5 x -49445879-7 x -35318485-35 x -7063697-1619 x -152705-4363 x -56665-8095 x -30541-11333 x -21815
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 247,229,395, 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 | 247,229,395 | |
| -1 | -247,229,395 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 247,229,395.
Example:
1 x 247,229,395 = 247,229,395
and
-1 x -247,229,395 = 247,229,395
Notice both answers equal 247,229,395
With that explanation out of the way, let's continue. Next, we take the number 247,229,395 and divide it by 2:
247,229,395 ÷ 2 = 123,614,697.5
If the quotient is a whole number, then 2 and 123,614,697.5 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 | 247,229,395 | |
| -1 | -247,229,395 |
Now, we try dividing 247,229,395 by 3:
247,229,395 ÷ 3 = 82,409,798.3333
If the quotient is a whole number, then 3 and 82,409,798.3333 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 | 247,229,395 | |
| -1 | -247,229,395 |
Let's try dividing by 4:
247,229,395 ÷ 4 = 61,807,348.75
If the quotient is a whole number, then 4 and 61,807,348.75 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 | 247,229,395 | |
| -1 | 247,229,395 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,619 | 4,363 | 8,095 | 11,333 | 21,815 | 30,541 | 56,665 | 152,705 | 7,063,697 | 35,318,485 | 49,445,879 | 247,229,395 |
| -1 | -5 | -7 | -35 | -1,619 | -4,363 | -8,095 | -11,333 | -21,815 | -30,541 | -56,665 | -152,705 | -7,063,697 | -35,318,485 | -49,445,879 | -247,229,395 |
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