A:
Positive:
1 x 163019055 x 326038119 x 85799595 x 171599101 x 161405505 x 322811699 x 95951919 x 8495
Negative:
-1 x -16301905-5 x -3260381-19 x -857995-95 x -171599-101 x -161405-505 x -32281-1699 x -9595-1919 x -8495
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 16,301,905, 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 | 16,301,905 | |
| -1 | -16,301,905 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,301,905.
Example:
1 x 16,301,905 = 16,301,905
and
-1 x -16,301,905 = 16,301,905
Notice both answers equal 16,301,905
With that explanation out of the way, let's continue. Next, we take the number 16,301,905 and divide it by 2:
16,301,905 ÷ 2 = 8,150,952.5
If the quotient is a whole number, then 2 and 8,150,952.5 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 | 16,301,905 | |
| -1 | -16,301,905 |
Now, we try dividing 16,301,905 by 3:
16,301,905 ÷ 3 = 5,433,968.3333
If the quotient is a whole number, then 3 and 5,433,968.3333 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 | 16,301,905 | |
| -1 | -16,301,905 |
Let's try dividing by 4:
16,301,905 ÷ 4 = 4,075,476.25
If the quotient is a whole number, then 4 and 4,075,476.25 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 | 16,301,905 | |
| -1 | 16,301,905 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 101 | 505 | 1,699 | 1,919 | 8,495 | 9,595 | 32,281 | 161,405 | 171,599 | 857,995 | 3,260,381 | 16,301,905 |
| -1 | -5 | -19 | -95 | -101 | -505 | -1,699 | -1,919 | -8,495 | -9,595 | -32,281 | -161,405 | -171,599 | -857,995 | -3,260,381 | -16,301,905 |
Here are some more numbers to try:
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