A:
Positive:
1 x 235708555 x 47141717 x 336726511 x 214280535 x 67345355 x 42856177 x 306115385 x 61223
Negative:
-1 x -23570855-5 x -4714171-7 x -3367265-11 x -2142805-35 x -673453-55 x -428561-77 x -306115-385 x -61223
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 23,570,855, 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 | 23,570,855 | |
| -1 | -23,570,855 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,570,855.
Example:
1 x 23,570,855 = 23,570,855
and
-1 x -23,570,855 = 23,570,855
Notice both answers equal 23,570,855
With that explanation out of the way, let's continue. Next, we take the number 23,570,855 and divide it by 2:
23,570,855 ÷ 2 = 11,785,427.5
If the quotient is a whole number, then 2 and 11,785,427.5 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 | 23,570,855 | |
| -1 | -23,570,855 |
Now, we try dividing 23,570,855 by 3:
23,570,855 ÷ 3 = 7,856,951.6667
If the quotient is a whole number, then 3 and 7,856,951.6667 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 | 23,570,855 | |
| -1 | -23,570,855 |
Let's try dividing by 4:
23,570,855 ÷ 4 = 5,892,713.75
If the quotient is a whole number, then 4 and 5,892,713.75 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 | 23,570,855 | |
| -1 | 23,570,855 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 61,223 | 306,115 | 428,561 | 673,453 | 2,142,805 | 3,367,265 | 4,714,171 | 23,570,855 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -61,223 | -306,115 | -428,561 | -673,453 | -2,142,805 | -3,367,265 | -4,714,171 | -23,570,855 |
Here are some more numbers to try:
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