A:
Positive:
1 x 1553666329 x 53574741 x 37894373 x 212831179 x 867971189 x 130672117 x 73392993 x 5191
Negative:
-1 x -15536663-29 x -535747-41 x -378943-73 x -212831-179 x -86797-1189 x -13067-2117 x -7339-2993 x -5191
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 15,536,663, 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 | 15,536,663 | |
| -1 | -15,536,663 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,536,663.
Example:
1 x 15,536,663 = 15,536,663
and
-1 x -15,536,663 = 15,536,663
Notice both answers equal 15,536,663
With that explanation out of the way, let's continue. Next, we take the number 15,536,663 and divide it by 2:
15,536,663 ÷ 2 = 7,768,331.5
If the quotient is a whole number, then 2 and 7,768,331.5 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 | 15,536,663 | |
| -1 | -15,536,663 |
Now, we try dividing 15,536,663 by 3:
15,536,663 ÷ 3 = 5,178,887.6667
If the quotient is a whole number, then 3 and 5,178,887.6667 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 | 15,536,663 | |
| -1 | -15,536,663 |
Let's try dividing by 4:
15,536,663 ÷ 4 = 3,884,165.75
If the quotient is a whole number, then 4 and 3,884,165.75 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 | 15,536,663 | |
| -1 | 15,536,663 |
If you did it right, you will end up with this table:
| 1 | 29 | 41 | 73 | 179 | 1,189 | 2,117 | 2,993 | 5,191 | 7,339 | 13,067 | 86,797 | 212,831 | 378,943 | 535,747 | 15,536,663 |
| -1 | -29 | -41 | -73 | -179 | -1,189 | -2,117 | -2,993 | -5,191 | -7,339 | -13,067 | -86,797 | -212,831 | -378,943 | -535,747 | -15,536,663 |
Here are some more numbers to try:
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