A:
Positive:
1 x 15509655 x 31019313 x 11930565 x 23861107 x 14495223 x 6955535 x 28991115 x 1391
Negative:
-1 x -1550965-5 x -310193-13 x -119305-65 x -23861-107 x -14495-223 x -6955-535 x -2899-1115 x -1391
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 1,550,965, 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 | 1,550,965 | |
| -1 | -1,550,965 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,550,965.
Example:
1 x 1,550,965 = 1,550,965
and
-1 x -1,550,965 = 1,550,965
Notice both answers equal 1,550,965
With that explanation out of the way, let's continue. Next, we take the number 1,550,965 and divide it by 2:
1,550,965 ÷ 2 = 775,482.5
If the quotient is a whole number, then 2 and 775,482.5 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 | 1,550,965 | |
| -1 | -1,550,965 |
Now, we try dividing 1,550,965 by 3:
1,550,965 ÷ 3 = 516,988.3333
If the quotient is a whole number, then 3 and 516,988.3333 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 | 1,550,965 | |
| -1 | -1,550,965 |
Let's try dividing by 4:
1,550,965 ÷ 4 = 387,741.25
If the quotient is a whole number, then 4 and 387,741.25 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 | 1,550,965 | |
| -1 | 1,550,965 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 107 | 223 | 535 | 1,115 | 1,391 | 2,899 | 6,955 | 14,495 | 23,861 | 119,305 | 310,193 | 1,550,965 |
| -1 | -5 | -13 | -65 | -107 | -223 | -535 | -1,115 | -1,391 | -2,899 | -6,955 | -14,495 | -23,861 | -119,305 | -310,193 | -1,550,965 |
Here are some more numbers to try:
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