A:
Positive:
1 x 2127605755 x 4255211519 x 1119792525 x 851042395 x 2239585401 x 530575475 x 4479171117 x 1904752005 x 1061155585 x 380957619 x 2792510025 x 21223
Negative:
-1 x -212760575-5 x -42552115-19 x -11197925-25 x -8510423-95 x -2239585-401 x -530575-475 x -447917-1117 x -190475-2005 x -106115-5585 x -38095-7619 x -27925-10025 x -21223
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 212,760,575, 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 | 212,760,575 | |
| -1 | -212,760,575 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 212,760,575.
Example:
1 x 212,760,575 = 212,760,575
and
-1 x -212,760,575 = 212,760,575
Notice both answers equal 212,760,575
With that explanation out of the way, let's continue. Next, we take the number 212,760,575 and divide it by 2:
212,760,575 ÷ 2 = 106,380,287.5
If the quotient is a whole number, then 2 and 106,380,287.5 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 | 212,760,575 | |
| -1 | -212,760,575 |
Now, we try dividing 212,760,575 by 3:
212,760,575 ÷ 3 = 70,920,191.6667
If the quotient is a whole number, then 3 and 70,920,191.6667 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 | 212,760,575 | |
| -1 | -212,760,575 |
Let's try dividing by 4:
212,760,575 ÷ 4 = 53,190,143.75
If the quotient is a whole number, then 4 and 53,190,143.75 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 | 212,760,575 | |
| -1 | 212,760,575 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 401 | 475 | 1,117 | 2,005 | 5,585 | 7,619 | 10,025 | 21,223 | 27,925 | 38,095 | 106,115 | 190,475 | 447,917 | 530,575 | 2,239,585 | 8,510,423 | 11,197,925 | 42,552,115 | 212,760,575 |
| -1 | -5 | -19 | -25 | -95 | -401 | -475 | -1,117 | -2,005 | -5,585 | -7,619 | -10,025 | -21,223 | -27,925 | -38,095 | -106,115 | -190,475 | -447,917 | -530,575 | -2,239,585 | -8,510,423 | -11,197,925 | -42,552,115 | -212,760,575 |
Here are some more numbers to try:
Try the factor calculator