A:
Positive:
1 x 6165714655 x 12331429323 x 2680745529 x 21261085115 x 5361491145 x 4252217667 x 9243953335 x 184879
Negative:
-1 x -616571465-5 x -123314293-23 x -26807455-29 x -21261085-115 x -5361491-145 x -4252217-667 x -924395-3335 x -184879
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 616,571,465, 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 | 616,571,465 | |
| -1 | -616,571,465 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 616,571,465.
Example:
1 x 616,571,465 = 616,571,465
and
-1 x -616,571,465 = 616,571,465
Notice both answers equal 616,571,465
With that explanation out of the way, let's continue. Next, we take the number 616,571,465 and divide it by 2:
616,571,465 ÷ 2 = 308,285,732.5
If the quotient is a whole number, then 2 and 308,285,732.5 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 | 616,571,465 | |
| -1 | -616,571,465 |
Now, we try dividing 616,571,465 by 3:
616,571,465 ÷ 3 = 205,523,821.6667
If the quotient is a whole number, then 3 and 205,523,821.6667 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 | 616,571,465 | |
| -1 | -616,571,465 |
Let's try dividing by 4:
616,571,465 ÷ 4 = 154,142,866.25
If the quotient is a whole number, then 4 and 154,142,866.25 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 | 616,571,465 | |
| -1 | 616,571,465 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 29 | 115 | 145 | 667 | 3,335 | 184,879 | 924,395 | 4,252,217 | 5,361,491 | 21,261,085 | 26,807,455 | 123,314,293 | 616,571,465 |
| -1 | -5 | -23 | -29 | -115 | -145 | -667 | -3,335 | -184,879 | -924,395 | -4,252,217 | -5,361,491 | -21,261,085 | -26,807,455 | -123,314,293 | -616,571,465 |
Here are some more numbers to try:
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