A:
Positive:
1 x 2114033397 x 3020047741 x 5156179163 x 1296953287 x 7365971141 x 1852794519 x 467816683 x 31633
Negative:
-1 x -211403339-7 x -30200477-41 x -5156179-163 x -1296953-287 x -736597-1141 x -185279-4519 x -46781-6683 x -31633
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 211,403,339, 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 | 211,403,339 | |
| -1 | -211,403,339 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 211,403,339.
Example:
1 x 211,403,339 = 211,403,339
and
-1 x -211,403,339 = 211,403,339
Notice both answers equal 211,403,339
With that explanation out of the way, let's continue. Next, we take the number 211,403,339 and divide it by 2:
211,403,339 ÷ 2 = 105,701,669.5
If the quotient is a whole number, then 2 and 105,701,669.5 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 | 211,403,339 | |
| -1 | -211,403,339 |
Now, we try dividing 211,403,339 by 3:
211,403,339 ÷ 3 = 70,467,779.6667
If the quotient is a whole number, then 3 and 70,467,779.6667 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 | 211,403,339 | |
| -1 | -211,403,339 |
Let's try dividing by 4:
211,403,339 ÷ 4 = 52,850,834.75
If the quotient is a whole number, then 4 and 52,850,834.75 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 | 211,403,339 | |
| -1 | 211,403,339 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 163 | 287 | 1,141 | 4,519 | 6,683 | 31,633 | 46,781 | 185,279 | 736,597 | 1,296,953 | 5,156,179 | 30,200,477 | 211,403,339 |
| -1 | -7 | -41 | -163 | -287 | -1,141 | -4,519 | -6,683 | -31,633 | -46,781 | -185,279 | -736,597 | -1,296,953 | -5,156,179 | -30,200,477 | -211,403,339 |
Here are some more numbers to try:
Try the factor calculator