A:
Positive:
1 x 74286555 x 148573113 x 57143523 x 32298565 x 114287115 x 64597299 x 248451495 x 4969
Negative:
-1 x -7428655-5 x -1485731-13 x -571435-23 x -322985-65 x -114287-115 x -64597-299 x -24845-1495 x -4969
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 7,428,655, 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 | 7,428,655 | |
| -1 | -7,428,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,428,655.
Example:
1 x 7,428,655 = 7,428,655
and
-1 x -7,428,655 = 7,428,655
Notice both answers equal 7,428,655
With that explanation out of the way, let's continue. Next, we take the number 7,428,655 and divide it by 2:
7,428,655 ÷ 2 = 3,714,327.5
If the quotient is a whole number, then 2 and 3,714,327.5 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 | 7,428,655 | |
| -1 | -7,428,655 |
Now, we try dividing 7,428,655 by 3:
7,428,655 ÷ 3 = 2,476,218.3333
If the quotient is a whole number, then 3 and 2,476,218.3333 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 | 7,428,655 | |
| -1 | -7,428,655 |
Let's try dividing by 4:
7,428,655 ÷ 4 = 1,857,163.75
If the quotient is a whole number, then 4 and 1,857,163.75 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 | 7,428,655 | |
| -1 | 7,428,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 4,969 | 24,845 | 64,597 | 114,287 | 322,985 | 571,435 | 1,485,731 | 7,428,655 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -4,969 | -24,845 | -64,597 | -114,287 | -322,985 | -571,435 | -1,485,731 | -7,428,655 |
Here are some more numbers to try:
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