A:
Positive:
1 x 832305117 x 1189007313 x 640234753 x 157038791 x 914621371 x 224341689 x 1207994823 x 17257
Negative:
-1 x -83230511-7 x -11890073-13 x -6402347-53 x -1570387-91 x -914621-371 x -224341-689 x -120799-4823 x -17257
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 83,230,511, 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 | 83,230,511 | |
| -1 | -83,230,511 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 83,230,511.
Example:
1 x 83,230,511 = 83,230,511
and
-1 x -83,230,511 = 83,230,511
Notice both answers equal 83,230,511
With that explanation out of the way, let's continue. Next, we take the number 83,230,511 and divide it by 2:
83,230,511 ÷ 2 = 41,615,255.5
If the quotient is a whole number, then 2 and 41,615,255.5 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 | 83,230,511 | |
| -1 | -83,230,511 |
Now, we try dividing 83,230,511 by 3:
83,230,511 ÷ 3 = 27,743,503.6667
If the quotient is a whole number, then 3 and 27,743,503.6667 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 | 83,230,511 | |
| -1 | -83,230,511 |
Let's try dividing by 4:
83,230,511 ÷ 4 = 20,807,627.75
If the quotient is a whole number, then 4 and 20,807,627.75 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 | 83,230,511 | |
| -1 | 83,230,511 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 53 | 91 | 371 | 689 | 4,823 | 17,257 | 120,799 | 224,341 | 914,621 | 1,570,387 | 6,402,347 | 11,890,073 | 83,230,511 |
| -1 | -7 | -13 | -53 | -91 | -371 | -689 | -4,823 | -17,257 | -120,799 | -224,341 | -914,621 | -1,570,387 | -6,402,347 | -11,890,073 | -83,230,511 |
Here are some more numbers to try:
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