A:
Positive:
1 x 640335055 x 1280670147 x 1362415235 x 272483521 x 122905523 x 1224352605 x 245812615 x 24487
Negative:
-1 x -64033505-5 x -12806701-47 x -1362415-235 x -272483-521 x -122905-523 x -122435-2605 x -24581-2615 x -24487
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 64,033,505, 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 | 64,033,505 | |
| -1 | -64,033,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,033,505.
Example:
1 x 64,033,505 = 64,033,505
and
-1 x -64,033,505 = 64,033,505
Notice both answers equal 64,033,505
With that explanation out of the way, let's continue. Next, we take the number 64,033,505 and divide it by 2:
64,033,505 ÷ 2 = 32,016,752.5
If the quotient is a whole number, then 2 and 32,016,752.5 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 | 64,033,505 | |
| -1 | -64,033,505 |
Now, we try dividing 64,033,505 by 3:
64,033,505 ÷ 3 = 21,344,501.6667
If the quotient is a whole number, then 3 and 21,344,501.6667 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 | 64,033,505 | |
| -1 | -64,033,505 |
Let's try dividing by 4:
64,033,505 ÷ 4 = 16,008,376.25
If the quotient is a whole number, then 4 and 16,008,376.25 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 | 64,033,505 | |
| -1 | 64,033,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 235 | 521 | 523 | 2,605 | 2,615 | 24,487 | 24,581 | 122,435 | 122,905 | 272,483 | 1,362,415 | 12,806,701 | 64,033,505 |
| -1 | -5 | -47 | -235 | -521 | -523 | -2,605 | -2,615 | -24,487 | -24,581 | -122,435 | -122,905 | -272,483 | -1,362,415 | -12,806,701 | -64,033,505 |
Here are some more numbers to try:
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