A:
Positive:
1 x 11122332111 x 1011121119 x 5853859101 x 1101221121 x 919201209 x 532169479 x 2321991111 x 1001111919 x 579592299 x 483795269 x 211099101 x 12221
Negative:
-1 x -111223321-11 x -10111211-19 x -5853859-101 x -1101221-121 x -919201-209 x -532169-479 x -232199-1111 x -100111-1919 x -57959-2299 x -48379-5269 x -21109-9101 x -12221
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 111,223,321, 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 | 111,223,321 | |
| -1 | -111,223,321 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 111,223,321.
Example:
1 x 111,223,321 = 111,223,321
and
-1 x -111,223,321 = 111,223,321
Notice both answers equal 111,223,321
With that explanation out of the way, let's continue. Next, we take the number 111,223,321 and divide it by 2:
111,223,321 ÷ 2 = 55,611,660.5
If the quotient is a whole number, then 2 and 55,611,660.5 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 | 111,223,321 | |
| -1 | -111,223,321 |
Now, we try dividing 111,223,321 by 3:
111,223,321 ÷ 3 = 37,074,440.3333
If the quotient is a whole number, then 3 and 37,074,440.3333 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 | 111,223,321 | |
| -1 | -111,223,321 |
Let's try dividing by 4:
111,223,321 ÷ 4 = 27,805,830.25
If the quotient is a whole number, then 4 and 27,805,830.25 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 | 111,223,321 | |
| -1 | 111,223,321 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 101 | 121 | 209 | 479 | 1,111 | 1,919 | 2,299 | 5,269 | 9,101 | 12,221 | 21,109 | 48,379 | 57,959 | 100,111 | 232,199 | 532,169 | 919,201 | 1,101,221 | 5,853,859 | 10,111,211 | 111,223,321 |
| -1 | -11 | -19 | -101 | -121 | -209 | -479 | -1,111 | -1,919 | -2,299 | -5,269 | -9,101 | -12,221 | -21,109 | -48,379 | -57,959 | -100,111 | -232,199 | -532,169 | -919,201 | -1,101,221 | -5,853,859 | -10,111,211 | -111,223,321 |
Here are some more numbers to try:
Try the factor calculator