A:
Positive:
1 x 1548176311 x 140743343 x 36004171 x 218053461 x 33583473 x 32731781 x 198233053 x 5071
Negative:
-1 x -15481763-11 x -1407433-43 x -360041-71 x -218053-461 x -33583-473 x -32731-781 x -19823-3053 x -5071
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 15,481,763, 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 | 15,481,763 | |
| -1 | -15,481,763 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,481,763.
Example:
1 x 15,481,763 = 15,481,763
and
-1 x -15,481,763 = 15,481,763
Notice both answers equal 15,481,763
With that explanation out of the way, let's continue. Next, we take the number 15,481,763 and divide it by 2:
15,481,763 ÷ 2 = 7,740,881.5
If the quotient is a whole number, then 2 and 7,740,881.5 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 | 15,481,763 | |
| -1 | -15,481,763 |
Now, we try dividing 15,481,763 by 3:
15,481,763 ÷ 3 = 5,160,587.6667
If the quotient is a whole number, then 3 and 5,160,587.6667 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 | 15,481,763 | |
| -1 | -15,481,763 |
Let's try dividing by 4:
15,481,763 ÷ 4 = 3,870,440.75
If the quotient is a whole number, then 4 and 3,870,440.75 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 | 15,481,763 | |
| -1 | 15,481,763 |
If you did it right, you will end up with this table:
| 1 | 11 | 43 | 71 | 461 | 473 | 781 | 3,053 | 5,071 | 19,823 | 32,731 | 33,583 | 218,053 | 360,041 | 1,407,433 | 15,481,763 |
| -1 | -11 | -43 | -71 | -461 | -473 | -781 | -3,053 | -5,071 | -19,823 | -32,731 | -33,583 | -218,053 | -360,041 | -1,407,433 | -15,481,763 |
Here are some more numbers to try:
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