A:
Positive:
1 x 45124455 x 9024897 x 64463535 x 128927229 x 19705563 x 80151145 x 39411603 x 2815
Negative:
-1 x -4512445-5 x -902489-7 x -644635-35 x -128927-229 x -19705-563 x -8015-1145 x -3941-1603 x -2815
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 4,512,445, 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 | 4,512,445 | |
| -1 | -4,512,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,512,445.
Example:
1 x 4,512,445 = 4,512,445
and
-1 x -4,512,445 = 4,512,445
Notice both answers equal 4,512,445
With that explanation out of the way, let's continue. Next, we take the number 4,512,445 and divide it by 2:
4,512,445 ÷ 2 = 2,256,222.5
If the quotient is a whole number, then 2 and 2,256,222.5 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 | 4,512,445 | |
| -1 | -4,512,445 |
Now, we try dividing 4,512,445 by 3:
4,512,445 ÷ 3 = 1,504,148.3333
If the quotient is a whole number, then 3 and 1,504,148.3333 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 | 4,512,445 | |
| -1 | -4,512,445 |
Let's try dividing by 4:
4,512,445 ÷ 4 = 1,128,111.25
If the quotient is a whole number, then 4 and 1,128,111.25 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 | 4,512,445 | |
| -1 | 4,512,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 229 | 563 | 1,145 | 1,603 | 2,815 | 3,941 | 8,015 | 19,705 | 128,927 | 644,635 | 902,489 | 4,512,445 |
| -1 | -5 | -7 | -35 | -229 | -563 | -1,145 | -1,603 | -2,815 | -3,941 | -8,015 | -19,705 | -128,927 | -644,635 | -902,489 | -4,512,445 |
Here are some more numbers to try:
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