A:
Positive:
1 x 1540310455 x 308062097 x 2200443535 x 4400887521 x 2956452605 x 591293647 x 422358447 x 18235
Negative:
-1 x -154031045-5 x -30806209-7 x -22004435-35 x -4400887-521 x -295645-2605 x -59129-3647 x -42235-8447 x -18235
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 154,031,045, 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 | 154,031,045 | |
| -1 | -154,031,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,031,045.
Example:
1 x 154,031,045 = 154,031,045
and
-1 x -154,031,045 = 154,031,045
Notice both answers equal 154,031,045
With that explanation out of the way, let's continue. Next, we take the number 154,031,045 and divide it by 2:
154,031,045 ÷ 2 = 77,015,522.5
If the quotient is a whole number, then 2 and 77,015,522.5 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 | 154,031,045 | |
| -1 | -154,031,045 |
Now, we try dividing 154,031,045 by 3:
154,031,045 ÷ 3 = 51,343,681.6667
If the quotient is a whole number, then 3 and 51,343,681.6667 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 | 154,031,045 | |
| -1 | -154,031,045 |
Let's try dividing by 4:
154,031,045 ÷ 4 = 38,507,761.25
If the quotient is a whole number, then 4 and 38,507,761.25 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 | 154,031,045 | |
| -1 | 154,031,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 521 | 2,605 | 3,647 | 8,447 | 18,235 | 42,235 | 59,129 | 295,645 | 4,400,887 | 22,004,435 | 30,806,209 | 154,031,045 |
| -1 | -5 | -7 | -35 | -521 | -2,605 | -3,647 | -8,447 | -18,235 | -42,235 | -59,129 | -295,645 | -4,400,887 | -22,004,435 | -30,806,209 | -154,031,045 |
Here are some more numbers to try:
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