A:
Positive:
1 x 645501255 x 1291002519 x 339737525 x 258200595 x 679475125 x 516401475 x 1358952375 x 27179
Negative:
-1 x -64550125-5 x -12910025-19 x -3397375-25 x -2582005-95 x -679475-125 x -516401-475 x -135895-2375 x -27179
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 64,550,125, 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 | 64,550,125 | |
| -1 | -64,550,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,550,125.
Example:
1 x 64,550,125 = 64,550,125
and
-1 x -64,550,125 = 64,550,125
Notice both answers equal 64,550,125
With that explanation out of the way, let's continue. Next, we take the number 64,550,125 and divide it by 2:
64,550,125 ÷ 2 = 32,275,062.5
If the quotient is a whole number, then 2 and 32,275,062.5 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 | 64,550,125 | |
| -1 | -64,550,125 |
Now, we try dividing 64,550,125 by 3:
64,550,125 ÷ 3 = 21,516,708.3333
If the quotient is a whole number, then 3 and 21,516,708.3333 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 | 64,550,125 | |
| -1 | -64,550,125 |
Let's try dividing by 4:
64,550,125 ÷ 4 = 16,137,531.25
If the quotient is a whole number, then 4 and 16,137,531.25 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 | 64,550,125 | |
| -1 | 64,550,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 125 | 475 | 2,375 | 27,179 | 135,895 | 516,401 | 679,475 | 2,582,005 | 3,397,375 | 12,910,025 | 64,550,125 |
| -1 | -5 | -19 | -25 | -95 | -125 | -475 | -2,375 | -27,179 | -135,895 | -516,401 | -679,475 | -2,582,005 | -3,397,375 | -12,910,025 | -64,550,125 |
Here are some more numbers to try:
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