A:
Positive:
1 x 137242155 x 274484323 x 596705115 x 119341131 x 104765655 x 20953911 x 150653013 x 4555
Negative:
-1 x -13724215-5 x -2744843-23 x -596705-115 x -119341-131 x -104765-655 x -20953-911 x -15065-3013 x -4555
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 13,724,215, 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 | 13,724,215 | |
| -1 | -13,724,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,724,215.
Example:
1 x 13,724,215 = 13,724,215
and
-1 x -13,724,215 = 13,724,215
Notice both answers equal 13,724,215
With that explanation out of the way, let's continue. Next, we take the number 13,724,215 and divide it by 2:
13,724,215 ÷ 2 = 6,862,107.5
If the quotient is a whole number, then 2 and 6,862,107.5 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 | 13,724,215 | |
| -1 | -13,724,215 |
Now, we try dividing 13,724,215 by 3:
13,724,215 ÷ 3 = 4,574,738.3333
If the quotient is a whole number, then 3 and 4,574,738.3333 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 | 13,724,215 | |
| -1 | -13,724,215 |
Let's try dividing by 4:
13,724,215 ÷ 4 = 3,431,053.75
If the quotient is a whole number, then 4 and 3,431,053.75 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 | 13,724,215 | |
| -1 | 13,724,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 131 | 655 | 911 | 3,013 | 4,555 | 15,065 | 20,953 | 104,765 | 119,341 | 596,705 | 2,744,843 | 13,724,215 |
| -1 | -5 | -23 | -115 | -131 | -655 | -911 | -3,013 | -4,555 | -15,065 | -20,953 | -104,765 | -119,341 | -596,705 | -2,744,843 | -13,724,215 |
Here are some more numbers to try:
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