A:
Positive:
1 x 22126531911 x 2011502917 x 13015607121 x 1828639187 x 1183237263 x 841313409 x 5409912057 x 1075672893 x 764834471 x 494894499 x 491816953 x 31823
Negative:
-1 x -221265319-11 x -20115029-17 x -13015607-121 x -1828639-187 x -1183237-263 x -841313-409 x -540991-2057 x -107567-2893 x -76483-4471 x -49489-4499 x -49181-6953 x -31823
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 221,265,319, 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 | 221,265,319 | |
| -1 | -221,265,319 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 221,265,319.
Example:
1 x 221,265,319 = 221,265,319
and
-1 x -221,265,319 = 221,265,319
Notice both answers equal 221,265,319
With that explanation out of the way, let's continue. Next, we take the number 221,265,319 and divide it by 2:
221,265,319 ÷ 2 = 110,632,659.5
If the quotient is a whole number, then 2 and 110,632,659.5 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 | 221,265,319 | |
| -1 | -221,265,319 |
Now, we try dividing 221,265,319 by 3:
221,265,319 ÷ 3 = 73,755,106.3333
If the quotient is a whole number, then 3 and 73,755,106.3333 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 | 221,265,319 | |
| -1 | -221,265,319 |
Let's try dividing by 4:
221,265,319 ÷ 4 = 55,316,329.75
If the quotient is a whole number, then 4 and 55,316,329.75 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 | 221,265,319 | |
| -1 | 221,265,319 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 121 | 187 | 263 | 409 | 2,057 | 2,893 | 4,471 | 4,499 | 6,953 | 31,823 | 49,181 | 49,489 | 76,483 | 107,567 | 540,991 | 841,313 | 1,183,237 | 1,828,639 | 13,015,607 | 20,115,029 | 221,265,319 |
| -1 | -11 | -17 | -121 | -187 | -263 | -409 | -2,057 | -2,893 | -4,471 | -4,499 | -6,953 | -31,823 | -49,181 | -49,489 | -76,483 | -107,567 | -540,991 | -841,313 | -1,183,237 | -1,828,639 | -13,015,607 | -20,115,029 | -221,265,319 |
Here are some more numbers to try:
Try the factor calculator