A:
Positive:
1 x 227124317 x 324463323 x 98749749 x 463519161 x 141071343 x 662171127 x 201532879 x 7889
Negative:
-1 x -22712431-7 x -3244633-23 x -987497-49 x -463519-161 x -141071-343 x -66217-1127 x -20153-2879 x -7889
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 22,712,431, 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 | 22,712,431 | |
| -1 | -22,712,431 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,712,431.
Example:
1 x 22,712,431 = 22,712,431
and
-1 x -22,712,431 = 22,712,431
Notice both answers equal 22,712,431
With that explanation out of the way, let's continue. Next, we take the number 22,712,431 and divide it by 2:
22,712,431 ÷ 2 = 11,356,215.5
If the quotient is a whole number, then 2 and 11,356,215.5 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 | 22,712,431 | |
| -1 | -22,712,431 |
Now, we try dividing 22,712,431 by 3:
22,712,431 ÷ 3 = 7,570,810.3333
If the quotient is a whole number, then 3 and 7,570,810.3333 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 | 22,712,431 | |
| -1 | -22,712,431 |
Let's try dividing by 4:
22,712,431 ÷ 4 = 5,678,107.75
If the quotient is a whole number, then 4 and 5,678,107.75 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 | 22,712,431 | |
| -1 | 22,712,431 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 49 | 161 | 343 | 1,127 | 2,879 | 7,889 | 20,153 | 66,217 | 141,071 | 463,519 | 987,497 | 3,244,633 | 22,712,431 |
| -1 | -7 | -23 | -49 | -161 | -343 | -1,127 | -2,879 | -7,889 | -20,153 | -66,217 | -141,071 | -463,519 | -987,497 | -3,244,633 | -22,712,431 |
Here are some more numbers to try:
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