A:
Positive:
1 x 164011155 x 328022353 x 30945559 x 277985265 x 61891295 x 555971049 x 156353127 x 5245
Negative:
-1 x -16401115-5 x -3280223-53 x -309455-59 x -277985-265 x -61891-295 x -55597-1049 x -15635-3127 x -5245
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 16,401,115, 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 | 16,401,115 | |
| -1 | -16,401,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,401,115.
Example:
1 x 16,401,115 = 16,401,115
and
-1 x -16,401,115 = 16,401,115
Notice both answers equal 16,401,115
With that explanation out of the way, let's continue. Next, we take the number 16,401,115 and divide it by 2:
16,401,115 ÷ 2 = 8,200,557.5
If the quotient is a whole number, then 2 and 8,200,557.5 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 | 16,401,115 | |
| -1 | -16,401,115 |
Now, we try dividing 16,401,115 by 3:
16,401,115 ÷ 3 = 5,467,038.3333
If the quotient is a whole number, then 3 and 5,467,038.3333 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 | 16,401,115 | |
| -1 | -16,401,115 |
Let's try dividing by 4:
16,401,115 ÷ 4 = 4,100,278.75
If the quotient is a whole number, then 4 and 4,100,278.75 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 | 16,401,115 | |
| -1 | 16,401,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 59 | 265 | 295 | 1,049 | 3,127 | 5,245 | 15,635 | 55,597 | 61,891 | 277,985 | 309,455 | 3,280,223 | 16,401,115 |
| -1 | -5 | -53 | -59 | -265 | -295 | -1,049 | -3,127 | -5,245 | -15,635 | -55,597 | -61,891 | -277,985 | -309,455 | -3,280,223 | -16,401,115 |
Here are some more numbers to try:
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