A:
Positive:
1 x 2210332677 x 3157618113 x 1700255949 x 451088353 x 417043991 x 2428937371 x 595777637 x 346991689 x 3208032597 x 851114823 x 458296547 x 33761
Negative:
-1 x -221033267-7 x -31576181-13 x -17002559-49 x -4510883-53 x -4170439-91 x -2428937-371 x -595777-637 x -346991-689 x -320803-2597 x -85111-4823 x -45829-6547 x -33761
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 221,033,267, 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 | 221,033,267 | |
| -1 | -221,033,267 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 221,033,267.
Example:
1 x 221,033,267 = 221,033,267
and
-1 x -221,033,267 = 221,033,267
Notice both answers equal 221,033,267
With that explanation out of the way, let's continue. Next, we take the number 221,033,267 and divide it by 2:
221,033,267 ÷ 2 = 110,516,633.5
If the quotient is a whole number, then 2 and 110,516,633.5 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 | 221,033,267 | |
| -1 | -221,033,267 |
Now, we try dividing 221,033,267 by 3:
221,033,267 ÷ 3 = 73,677,755.6667
If the quotient is a whole number, then 3 and 73,677,755.6667 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 | 221,033,267 | |
| -1 | -221,033,267 |
Let's try dividing by 4:
221,033,267 ÷ 4 = 55,258,316.75
If the quotient is a whole number, then 4 and 55,258,316.75 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 | 221,033,267 | |
| -1 | 221,033,267 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 49 | 53 | 91 | 371 | 637 | 689 | 2,597 | 4,823 | 6,547 | 33,761 | 45,829 | 85,111 | 320,803 | 346,991 | 595,777 | 2,428,937 | 4,170,439 | 4,510,883 | 17,002,559 | 31,576,181 | 221,033,267 |
| -1 | -7 | -13 | -49 | -53 | -91 | -371 | -637 | -689 | -2,597 | -4,823 | -6,547 | -33,761 | -45,829 | -85,111 | -320,803 | -346,991 | -595,777 | -2,428,937 | -4,170,439 | -4,510,883 | -17,002,559 | -31,576,181 | -221,033,267 |
Here are some more numbers to try:
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