A:
Positive:
1 x 1006516455 x 2013032917 x 592068519 x 529745585 x 118413795 x 1059491323 x 3116151615 x 62323
Negative:
-1 x -100651645-5 x -20130329-17 x -5920685-19 x -5297455-85 x -1184137-95 x -1059491-323 x -311615-1615 x -62323
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 100,651,645, 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 | 100,651,645 | |
| -1 | -100,651,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 100,651,645.
Example:
1 x 100,651,645 = 100,651,645
and
-1 x -100,651,645 = 100,651,645
Notice both answers equal 100,651,645
With that explanation out of the way, let's continue. Next, we take the number 100,651,645 and divide it by 2:
100,651,645 ÷ 2 = 50,325,822.5
If the quotient is a whole number, then 2 and 50,325,822.5 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 | 100,651,645 | |
| -1 | -100,651,645 |
Now, we try dividing 100,651,645 by 3:
100,651,645 ÷ 3 = 33,550,548.3333
If the quotient is a whole number, then 3 and 33,550,548.3333 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 | 100,651,645 | |
| -1 | -100,651,645 |
Let's try dividing by 4:
100,651,645 ÷ 4 = 25,162,911.25
If the quotient is a whole number, then 4 and 25,162,911.25 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 | 100,651,645 | |
| -1 | 100,651,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 85 | 95 | 323 | 1,615 | 62,323 | 311,615 | 1,059,491 | 1,184,137 | 5,297,455 | 5,920,685 | 20,130,329 | 100,651,645 |
| -1 | -5 | -17 | -19 | -85 | -95 | -323 | -1,615 | -62,323 | -311,615 | -1,059,491 | -1,184,137 | -5,297,455 | -5,920,685 | -20,130,329 | -100,651,645 |
Here are some more numbers to try:
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