A:
Positive:
1 x 196732555 x 39346517 x 281046535 x 56209349 x 40149559 x 333445245 x 80299295 x 66689413 x 476351361 x 144552065 x 95272891 x 6805
Negative:
-1 x -19673255-5 x -3934651-7 x -2810465-35 x -562093-49 x -401495-59 x -333445-245 x -80299-295 x -66689-413 x -47635-1361 x -14455-2065 x -9527-2891 x -6805
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 19,673,255, 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 | 19,673,255 | |
| -1 | -19,673,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,673,255.
Example:
1 x 19,673,255 = 19,673,255
and
-1 x -19,673,255 = 19,673,255
Notice both answers equal 19,673,255
With that explanation out of the way, let's continue. Next, we take the number 19,673,255 and divide it by 2:
19,673,255 ÷ 2 = 9,836,627.5
If the quotient is a whole number, then 2 and 9,836,627.5 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 | 19,673,255 | |
| -1 | -19,673,255 |
Now, we try dividing 19,673,255 by 3:
19,673,255 ÷ 3 = 6,557,751.6667
If the quotient is a whole number, then 3 and 6,557,751.6667 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 | 19,673,255 | |
| -1 | -19,673,255 |
Let's try dividing by 4:
19,673,255 ÷ 4 = 4,918,313.75
If the quotient is a whole number, then 4 and 4,918,313.75 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 | 19,673,255 | |
| -1 | 19,673,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 59 | 245 | 295 | 413 | 1,361 | 2,065 | 2,891 | 6,805 | 9,527 | 14,455 | 47,635 | 66,689 | 80,299 | 333,445 | 401,495 | 562,093 | 2,810,465 | 3,934,651 | 19,673,255 |
| -1 | -5 | -7 | -35 | -49 | -59 | -245 | -295 | -413 | -1,361 | -2,065 | -2,891 | -6,805 | -9,527 | -14,455 | -47,635 | -66,689 | -80,299 | -333,445 | -401,495 | -562,093 | -2,810,465 | -3,934,651 | -19,673,255 |
Here are some more numbers to try:
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