A:
Positive:
1 x 1487307255 x 2974614511 x 1352097513 x 1144082525 x 594922955 x 270419565 x 2288165143 x 1040075275 x 540839325 x 457633715 x 2080153575 x 41603
Negative:
-1 x -148730725-5 x -29746145-11 x -13520975-13 x -11440825-25 x -5949229-55 x -2704195-65 x -2288165-143 x -1040075-275 x -540839-325 x -457633-715 x -208015-3575 x -41603
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 148,730,725, 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 | 148,730,725 | |
| -1 | -148,730,725 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 148,730,725.
Example:
1 x 148,730,725 = 148,730,725
and
-1 x -148,730,725 = 148,730,725
Notice both answers equal 148,730,725
With that explanation out of the way, let's continue. Next, we take the number 148,730,725 and divide it by 2:
148,730,725 ÷ 2 = 74,365,362.5
If the quotient is a whole number, then 2 and 74,365,362.5 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 | 148,730,725 | |
| -1 | -148,730,725 |
Now, we try dividing 148,730,725 by 3:
148,730,725 ÷ 3 = 49,576,908.3333
If the quotient is a whole number, then 3 and 49,576,908.3333 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 | 148,730,725 | |
| -1 | -148,730,725 |
Let's try dividing by 4:
148,730,725 ÷ 4 = 37,182,681.25
If the quotient is a whole number, then 4 and 37,182,681.25 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 | 148,730,725 | |
| -1 | 148,730,725 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 25 | 55 | 65 | 143 | 275 | 325 | 715 | 3,575 | 41,603 | 208,015 | 457,633 | 540,839 | 1,040,075 | 2,288,165 | 2,704,195 | 5,949,229 | 11,440,825 | 13,520,975 | 29,746,145 | 148,730,725 |
| -1 | -5 | -11 | -13 | -25 | -55 | -65 | -143 | -275 | -325 | -715 | -3,575 | -41,603 | -208,015 | -457,633 | -540,839 | -1,040,075 | -2,288,165 | -2,704,195 | -5,949,229 | -11,440,825 | -13,520,975 | -29,746,145 | -148,730,725 |
Here are some more numbers to try:
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