A:
Positive:
1 x 234907197 x 335581717 x 1381807119 x 197401307 x 76517643 x 365332149 x 109314501 x 5219
Negative:
-1 x -23490719-7 x -3355817-17 x -1381807-119 x -197401-307 x -76517-643 x -36533-2149 x -10931-4501 x -5219
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 23,490,719, 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 | 23,490,719 | |
| -1 | -23,490,719 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,490,719.
Example:
1 x 23,490,719 = 23,490,719
and
-1 x -23,490,719 = 23,490,719
Notice both answers equal 23,490,719
With that explanation out of the way, let's continue. Next, we take the number 23,490,719 and divide it by 2:
23,490,719 ÷ 2 = 11,745,359.5
If the quotient is a whole number, then 2 and 11,745,359.5 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 | 23,490,719 | |
| -1 | -23,490,719 |
Now, we try dividing 23,490,719 by 3:
23,490,719 ÷ 3 = 7,830,239.6667
If the quotient is a whole number, then 3 and 7,830,239.6667 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 | 23,490,719 | |
| -1 | -23,490,719 |
Let's try dividing by 4:
23,490,719 ÷ 4 = 5,872,679.75
If the quotient is a whole number, then 4 and 5,872,679.75 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 | 23,490,719 | |
| -1 | 23,490,719 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 307 | 643 | 2,149 | 4,501 | 5,219 | 10,931 | 36,533 | 76,517 | 197,401 | 1,381,807 | 3,355,817 | 23,490,719 |
| -1 | -7 | -17 | -119 | -307 | -643 | -2,149 | -4,501 | -5,219 | -10,931 | -36,533 | -76,517 | -197,401 | -1,381,807 | -3,355,817 | -23,490,719 |
Here are some more numbers to try:
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