A:
Positive:
1 x 15017755 x 30035511 x 13652525 x 6007143 x 3492555 x 27305127 x 11825215 x 6985275 x 5461473 x 3175635 x 23651075 x 1397
Negative:
-1 x -1501775-5 x -300355-11 x -136525-25 x -60071-43 x -34925-55 x -27305-127 x -11825-215 x -6985-275 x -5461-473 x -3175-635 x -2365-1075 x -1397
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 1,501,775, 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 | 1,501,775 | |
| -1 | -1,501,775 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,501,775.
Example:
1 x 1,501,775 = 1,501,775
and
-1 x -1,501,775 = 1,501,775
Notice both answers equal 1,501,775
With that explanation out of the way, let's continue. Next, we take the number 1,501,775 and divide it by 2:
1,501,775 ÷ 2 = 750,887.5
If the quotient is a whole number, then 2 and 750,887.5 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 | 1,501,775 | |
| -1 | -1,501,775 |
Now, we try dividing 1,501,775 by 3:
1,501,775 ÷ 3 = 500,591.6667
If the quotient is a whole number, then 3 and 500,591.6667 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 | 1,501,775 | |
| -1 | -1,501,775 |
Let's try dividing by 4:
1,501,775 ÷ 4 = 375,443.75
If the quotient is a whole number, then 4 and 375,443.75 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 | 1,501,775 | |
| -1 | 1,501,775 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 43 | 55 | 127 | 215 | 275 | 473 | 635 | 1,075 | 1,397 | 2,365 | 3,175 | 5,461 | 6,985 | 11,825 | 27,305 | 34,925 | 60,071 | 136,525 | 300,355 | 1,501,775 |
| -1 | -5 | -11 | -25 | -43 | -55 | -127 | -215 | -275 | -473 | -635 | -1,075 | -1,397 | -2,365 | -3,175 | -5,461 | -6,985 | -11,825 | -27,305 | -34,925 | -60,071 | -136,525 | -300,355 | -1,501,775 |
Here are some more numbers to try:
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