A:
Positive:
1 x 14232221311 x 1293838379 x 1801547199 x 715187823 x 172931869 x 1637772189 x 650179053 x 15721
Negative:
-1 x -142322213-11 x -12938383-79 x -1801547-199 x -715187-823 x -172931-869 x -163777-2189 x -65017-9053 x -15721
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 142,322,213, 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 | 142,322,213 | |
| -1 | -142,322,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 142,322,213.
Example:
1 x 142,322,213 = 142,322,213
and
-1 x -142,322,213 = 142,322,213
Notice both answers equal 142,322,213
With that explanation out of the way, let's continue. Next, we take the number 142,322,213 and divide it by 2:
142,322,213 ÷ 2 = 71,161,106.5
If the quotient is a whole number, then 2 and 71,161,106.5 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 | 142,322,213 | |
| -1 | -142,322,213 |
Now, we try dividing 142,322,213 by 3:
142,322,213 ÷ 3 = 47,440,737.6667
If the quotient is a whole number, then 3 and 47,440,737.6667 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 | 142,322,213 | |
| -1 | -142,322,213 |
Let's try dividing by 4:
142,322,213 ÷ 4 = 35,580,553.25
If the quotient is a whole number, then 4 and 35,580,553.25 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 | 142,322,213 | |
| -1 | 142,322,213 |
If you did it right, you will end up with this table:
| 1 | 11 | 79 | 199 | 823 | 869 | 2,189 | 9,053 | 15,721 | 65,017 | 163,777 | 172,931 | 715,187 | 1,801,547 | 12,938,383 | 142,322,213 |
| -1 | -11 | -79 | -199 | -823 | -869 | -2,189 | -9,053 | -15,721 | -65,017 | -163,777 | -172,931 | -715,187 | -1,801,547 | -12,938,383 | -142,322,213 |
Here are some more numbers to try:
Try the factor calculator