A:
Positive:
1 x 22105054117 x 1300297319 x 1163423947 x 4703203323 x 684367799 x 276659893 x 24753714561 x 15181
Negative:
-1 x -221050541-17 x -13002973-19 x -11634239-47 x -4703203-323 x -684367-799 x -276659-893 x -247537-14561 x -15181
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 221,050,541, 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 | 221,050,541 | |
| -1 | -221,050,541 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 221,050,541.
Example:
1 x 221,050,541 = 221,050,541
and
-1 x -221,050,541 = 221,050,541
Notice both answers equal 221,050,541
With that explanation out of the way, let's continue. Next, we take the number 221,050,541 and divide it by 2:
221,050,541 ÷ 2 = 110,525,270.5
If the quotient is a whole number, then 2 and 110,525,270.5 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 | 221,050,541 | |
| -1 | -221,050,541 |
Now, we try dividing 221,050,541 by 3:
221,050,541 ÷ 3 = 73,683,513.6667
If the quotient is a whole number, then 3 and 73,683,513.6667 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 | 221,050,541 | |
| -1 | -221,050,541 |
Let's try dividing by 4:
221,050,541 ÷ 4 = 55,262,635.25
If the quotient is a whole number, then 4 and 55,262,635.25 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 | 221,050,541 | |
| -1 | 221,050,541 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 47 | 323 | 799 | 893 | 14,561 | 15,181 | 247,537 | 276,659 | 684,367 | 4,703,203 | 11,634,239 | 13,002,973 | 221,050,541 |
| -1 | -17 | -19 | -47 | -323 | -799 | -893 | -14,561 | -15,181 | -247,537 | -276,659 | -684,367 | -4,703,203 | -11,634,239 | -13,002,973 | -221,050,541 |
Here are some more numbers to try:
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