A:
Positive:
1 x 216372737 x 309103923 x 94075149 x 44157773 x 296401161 x 134393263 x 82271511 x 423431127 x 191991679 x 128871841 x 117533577 x 6049
Negative:
-1 x -21637273-7 x -3091039-23 x -940751-49 x -441577-73 x -296401-161 x -134393-263 x -82271-511 x -42343-1127 x -19199-1679 x -12887-1841 x -11753-3577 x -6049
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 21,637,273, 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 | 21,637,273 | |
| -1 | -21,637,273 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,637,273.
Example:
1 x 21,637,273 = 21,637,273
and
-1 x -21,637,273 = 21,637,273
Notice both answers equal 21,637,273
With that explanation out of the way, let's continue. Next, we take the number 21,637,273 and divide it by 2:
21,637,273 ÷ 2 = 10,818,636.5
If the quotient is a whole number, then 2 and 10,818,636.5 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 | 21,637,273 | |
| -1 | -21,637,273 |
Now, we try dividing 21,637,273 by 3:
21,637,273 ÷ 3 = 7,212,424.3333
If the quotient is a whole number, then 3 and 7,212,424.3333 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 | 21,637,273 | |
| -1 | -21,637,273 |
Let's try dividing by 4:
21,637,273 ÷ 4 = 5,409,318.25
If the quotient is a whole number, then 4 and 5,409,318.25 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 | 21,637,273 | |
| -1 | 21,637,273 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 49 | 73 | 161 | 263 | 511 | 1,127 | 1,679 | 1,841 | 3,577 | 6,049 | 11,753 | 12,887 | 19,199 | 42,343 | 82,271 | 134,393 | 296,401 | 441,577 | 940,751 | 3,091,039 | 21,637,273 |
| -1 | -7 | -23 | -49 | -73 | -161 | -263 | -511 | -1,127 | -1,679 | -1,841 | -3,577 | -6,049 | -11,753 | -12,887 | -19,199 | -42,343 | -82,271 | -134,393 | -296,401 | -441,577 | -940,751 | -3,091,039 | -21,637,273 |
Here are some more numbers to try:
Try the factor calculator