A:
Positive:
1 x 78300255 x 15660057 x 111857525 x 31320135 x 223715101 x 77525175 x 44743443 x 17675505 x 15505707 x 110752215 x 35352525 x 3101
Negative:
-1 x -7830025-5 x -1566005-7 x -1118575-25 x -313201-35 x -223715-101 x -77525-175 x -44743-443 x -17675-505 x -15505-707 x -11075-2215 x -3535-2525 x -3101
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 7,830,025, 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 | 7,830,025 | |
| -1 | -7,830,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,830,025.
Example:
1 x 7,830,025 = 7,830,025
and
-1 x -7,830,025 = 7,830,025
Notice both answers equal 7,830,025
With that explanation out of the way, let's continue. Next, we take the number 7,830,025 and divide it by 2:
7,830,025 ÷ 2 = 3,915,012.5
If the quotient is a whole number, then 2 and 3,915,012.5 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 | 7,830,025 | |
| -1 | -7,830,025 |
Now, we try dividing 7,830,025 by 3:
7,830,025 ÷ 3 = 2,610,008.3333
If the quotient is a whole number, then 3 and 2,610,008.3333 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 | 7,830,025 | |
| -1 | -7,830,025 |
Let's try dividing by 4:
7,830,025 ÷ 4 = 1,957,506.25
If the quotient is a whole number, then 4 and 1,957,506.25 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 | 7,830,025 | |
| -1 | 7,830,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 101 | 175 | 443 | 505 | 707 | 2,215 | 2,525 | 3,101 | 3,535 | 11,075 | 15,505 | 17,675 | 44,743 | 77,525 | 223,715 | 313,201 | 1,118,575 | 1,566,005 | 7,830,025 |
| -1 | -5 | -7 | -25 | -35 | -101 | -175 | -443 | -505 | -707 | -2,215 | -2,525 | -3,101 | -3,535 | -11,075 | -15,505 | -17,675 | -44,743 | -77,525 | -223,715 | -313,201 | -1,118,575 | -1,566,005 | -7,830,025 |
Here are some more numbers to try:
Try the factor calculator