A:
Positive:
1 x 62547064717 x 3679239143 x 1454582997 x 6448151731 x 8556371649 x 3793034171 x 1499578821 x 70907
Negative:
-1 x -625470647-17 x -36792391-43 x -14545829-97 x -6448151-731 x -855637-1649 x -379303-4171 x -149957-8821 x -70907
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 625,470,647, 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 | 625,470,647 | |
| -1 | -625,470,647 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 625,470,647.
Example:
1 x 625,470,647 = 625,470,647
and
-1 x -625,470,647 = 625,470,647
Notice both answers equal 625,470,647
With that explanation out of the way, let's continue. Next, we take the number 625,470,647 and divide it by 2:
625,470,647 ÷ 2 = 312,735,323.5
If the quotient is a whole number, then 2 and 312,735,323.5 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 | 625,470,647 | |
| -1 | -625,470,647 |
Now, we try dividing 625,470,647 by 3:
625,470,647 ÷ 3 = 208,490,215.6667
If the quotient is a whole number, then 3 and 208,490,215.6667 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 | 625,470,647 | |
| -1 | -625,470,647 |
Let's try dividing by 4:
625,470,647 ÷ 4 = 156,367,661.75
If the quotient is a whole number, then 4 and 156,367,661.75 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 | 625,470,647 | |
| -1 | 625,470,647 |
If you did it right, you will end up with this table:
| 1 | 17 | 43 | 97 | 731 | 1,649 | 4,171 | 8,821 | 70,907 | 149,957 | 379,303 | 855,637 | 6,448,151 | 14,545,829 | 36,792,391 | 625,470,647 |
| -1 | -17 | -43 | -97 | -731 | -1,649 | -4,171 | -8,821 | -70,907 | -149,957 | -379,303 | -855,637 | -6,448,151 | -14,545,829 | -36,792,391 | -625,470,647 |
Here are some more numbers to try:
Try the factor calculator