A:
Positive:
1 x 647474455 x 129494897 x 924963535 x 1849927359 x 1803551795 x 360712513 x 257655153 x 12565
Negative:
-1 x -64747445-5 x -12949489-7 x -9249635-35 x -1849927-359 x -180355-1795 x -36071-2513 x -25765-5153 x -12565
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 64,747,445, 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 | 64,747,445 | |
| -1 | -64,747,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,747,445.
Example:
1 x 64,747,445 = 64,747,445
and
-1 x -64,747,445 = 64,747,445
Notice both answers equal 64,747,445
With that explanation out of the way, let's continue. Next, we take the number 64,747,445 and divide it by 2:
64,747,445 ÷ 2 = 32,373,722.5
If the quotient is a whole number, then 2 and 32,373,722.5 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 | 64,747,445 | |
| -1 | -64,747,445 |
Now, we try dividing 64,747,445 by 3:
64,747,445 ÷ 3 = 21,582,481.6667
If the quotient is a whole number, then 3 and 21,582,481.6667 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 | 64,747,445 | |
| -1 | -64,747,445 |
Let's try dividing by 4:
64,747,445 ÷ 4 = 16,186,861.25
If the quotient is a whole number, then 4 and 16,186,861.25 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 | 64,747,445 | |
| -1 | 64,747,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 359 | 1,795 | 2,513 | 5,153 | 12,565 | 25,765 | 36,071 | 180,355 | 1,849,927 | 9,249,635 | 12,949,489 | 64,747,445 |
| -1 | -5 | -7 | -35 | -359 | -1,795 | -2,513 | -5,153 | -12,565 | -25,765 | -36,071 | -180,355 | -1,849,927 | -9,249,635 | -12,949,489 | -64,747,445 |
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