A:
Positive:
1 x 22106152317 x 1300361919 x 11634817323 x 684401439 x 5035571559 x 1417977463 x 296218341 x 26503
Negative:
-1 x -221061523-17 x -13003619-19 x -11634817-323 x -684401-439 x -503557-1559 x -141797-7463 x -29621-8341 x -26503
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 221,061,523, 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 | 221,061,523 | |
| -1 | -221,061,523 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 221,061,523.
Example:
1 x 221,061,523 = 221,061,523
and
-1 x -221,061,523 = 221,061,523
Notice both answers equal 221,061,523
With that explanation out of the way, let's continue. Next, we take the number 221,061,523 and divide it by 2:
221,061,523 ÷ 2 = 110,530,761.5
If the quotient is a whole number, then 2 and 110,530,761.5 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 | 221,061,523 | |
| -1 | -221,061,523 |
Now, we try dividing 221,061,523 by 3:
221,061,523 ÷ 3 = 73,687,174.3333
If the quotient is a whole number, then 3 and 73,687,174.3333 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 | 221,061,523 | |
| -1 | -221,061,523 |
Let's try dividing by 4:
221,061,523 ÷ 4 = 55,265,380.75
If the quotient is a whole number, then 4 and 55,265,380.75 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 | 221,061,523 | |
| -1 | 221,061,523 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 323 | 439 | 1,559 | 7,463 | 8,341 | 26,503 | 29,621 | 141,797 | 503,557 | 684,401 | 11,634,817 | 13,003,619 | 221,061,523 |
| -1 | -17 | -19 | -323 | -439 | -1,559 | -7,463 | -8,341 | -26,503 | -29,621 | -141,797 | -503,557 | -684,401 | -11,634,817 | -13,003,619 | -221,061,523 |
Here are some more numbers to try:
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