A:
Positive:
1 x 29900755 x 59801511 x 27182525 x 11960355 x 5436583 x 36025131 x 22825275 x 10873415 x 7205655 x 4565913 x 32751441 x 2075
Negative:
-1 x -2990075-5 x -598015-11 x -271825-25 x -119603-55 x -54365-83 x -36025-131 x -22825-275 x -10873-415 x -7205-655 x -4565-913 x -3275-1441 x -2075
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 2,990,075, 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 | 2,990,075 | |
| -1 | -2,990,075 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,990,075.
Example:
1 x 2,990,075 = 2,990,075
and
-1 x -2,990,075 = 2,990,075
Notice both answers equal 2,990,075
With that explanation out of the way, let's continue. Next, we take the number 2,990,075 and divide it by 2:
2,990,075 ÷ 2 = 1,495,037.5
If the quotient is a whole number, then 2 and 1,495,037.5 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 | 2,990,075 | |
| -1 | -2,990,075 |
Now, we try dividing 2,990,075 by 3:
2,990,075 ÷ 3 = 996,691.6667
If the quotient is a whole number, then 3 and 996,691.6667 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 | 2,990,075 | |
| -1 | -2,990,075 |
Let's try dividing by 4:
2,990,075 ÷ 4 = 747,518.75
If the quotient is a whole number, then 4 and 747,518.75 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 | 2,990,075 | |
| -1 | 2,990,075 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 83 | 131 | 275 | 415 | 655 | 913 | 1,441 | 2,075 | 3,275 | 4,565 | 7,205 | 10,873 | 22,825 | 36,025 | 54,365 | 119,603 | 271,825 | 598,015 | 2,990,075 |
| -1 | -5 | -11 | -25 | -55 | -83 | -131 | -275 | -415 | -655 | -913 | -1,441 | -2,075 | -3,275 | -4,565 | -7,205 | -10,873 | -22,825 | -36,025 | -54,365 | -119,603 | -271,825 | -598,015 | -2,990,075 |
Here are some more numbers to try:
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