A:
Positive:
1 x 15463917 x 22091311 x 14058119 x 8138949 x 3155977 x 20083133 x 11627151 x 10241209 x 7399539 x 2869931 x 16611057 x 1463
Negative:
-1 x -1546391-7 x -220913-11 x -140581-19 x -81389-49 x -31559-77 x -20083-133 x -11627-151 x -10241-209 x -7399-539 x -2869-931 x -1661-1057 x -1463
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 1,546,391, 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 | 1,546,391 | |
| -1 | -1,546,391 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,546,391.
Example:
1 x 1,546,391 = 1,546,391
and
-1 x -1,546,391 = 1,546,391
Notice both answers equal 1,546,391
With that explanation out of the way, let's continue. Next, we take the number 1,546,391 and divide it by 2:
1,546,391 ÷ 2 = 773,195.5
If the quotient is a whole number, then 2 and 773,195.5 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 | 1,546,391 | |
| -1 | -1,546,391 |
Now, we try dividing 1,546,391 by 3:
1,546,391 ÷ 3 = 515,463.6667
If the quotient is a whole number, then 3 and 515,463.6667 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 | 1,546,391 | |
| -1 | -1,546,391 |
Let's try dividing by 4:
1,546,391 ÷ 4 = 386,597.75
If the quotient is a whole number, then 4 and 386,597.75 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 | 1,546,391 | |
| -1 | 1,546,391 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 19 | 49 | 77 | 133 | 151 | 209 | 539 | 931 | 1,057 | 1,463 | 1,661 | 2,869 | 7,399 | 10,241 | 11,627 | 20,083 | 31,559 | 81,389 | 140,581 | 220,913 | 1,546,391 |
| -1 | -7 | -11 | -19 | -49 | -77 | -133 | -151 | -209 | -539 | -931 | -1,057 | -1,463 | -1,661 | -2,869 | -7,399 | -10,241 | -11,627 | -20,083 | -31,559 | -81,389 | -140,581 | -220,913 | -1,546,391 |
Here are some more numbers to try:
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