A:
Positive:
1 x 312230455 x 62446097 x 446043531 x 100719535 x 89208749 x 637205155 x 201439217 x 143885245 x 1274411085 x 287771519 x 205554111 x 7595
Negative:
-1 x -31223045-5 x -6244609-7 x -4460435-31 x -1007195-35 x -892087-49 x -637205-155 x -201439-217 x -143885-245 x -127441-1085 x -28777-1519 x -20555-4111 x -7595
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 31,223,045, 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 | 31,223,045 | |
| -1 | -31,223,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,223,045.
Example:
1 x 31,223,045 = 31,223,045
and
-1 x -31,223,045 = 31,223,045
Notice both answers equal 31,223,045
With that explanation out of the way, let's continue. Next, we take the number 31,223,045 and divide it by 2:
31,223,045 ÷ 2 = 15,611,522.5
If the quotient is a whole number, then 2 and 15,611,522.5 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 | 31,223,045 | |
| -1 | -31,223,045 |
Now, we try dividing 31,223,045 by 3:
31,223,045 ÷ 3 = 10,407,681.6667
If the quotient is a whole number, then 3 and 10,407,681.6667 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 | 31,223,045 | |
| -1 | -31,223,045 |
Let's try dividing by 4:
31,223,045 ÷ 4 = 7,805,761.25
If the quotient is a whole number, then 4 and 7,805,761.25 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 | 31,223,045 | |
| -1 | 31,223,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 49 | 155 | 217 | 245 | 1,085 | 1,519 | 4,111 | 7,595 | 20,555 | 28,777 | 127,441 | 143,885 | 201,439 | 637,205 | 892,087 | 1,007,195 | 4,460,435 | 6,244,609 | 31,223,045 |
| -1 | -5 | -7 | -31 | -35 | -49 | -155 | -217 | -245 | -1,085 | -1,519 | -4,111 | -7,595 | -20,555 | -28,777 | -127,441 | -143,885 | -201,439 | -637,205 | -892,087 | -1,007,195 | -4,460,435 | -6,244,609 | -31,223,045 |
Here are some more numbers to try:
Try the factor calculator