A:
Positive:
1 x 1543526055 x 3087052111 x 1403205517 x 907956555 x 280641185 x 1815913187 x 825415935 x 165083
Negative:
-1 x -154352605-5 x -30870521-11 x -14032055-17 x -9079565-55 x -2806411-85 x -1815913-187 x -825415-935 x -165083
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 154,352,605, 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 | 154,352,605 | |
| -1 | -154,352,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,352,605.
Example:
1 x 154,352,605 = 154,352,605
and
-1 x -154,352,605 = 154,352,605
Notice both answers equal 154,352,605
With that explanation out of the way, let's continue. Next, we take the number 154,352,605 and divide it by 2:
154,352,605 ÷ 2 = 77,176,302.5
If the quotient is a whole number, then 2 and 77,176,302.5 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 | 154,352,605 | |
| -1 | -154,352,605 |
Now, we try dividing 154,352,605 by 3:
154,352,605 ÷ 3 = 51,450,868.3333
If the quotient is a whole number, then 3 and 51,450,868.3333 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 | 154,352,605 | |
| -1 | -154,352,605 |
Let's try dividing by 4:
154,352,605 ÷ 4 = 38,588,151.25
If the quotient is a whole number, then 4 and 38,588,151.25 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 | 154,352,605 | |
| -1 | 154,352,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 165,083 | 825,415 | 1,815,913 | 2,806,411 | 9,079,565 | 14,032,055 | 30,870,521 | 154,352,605 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -165,083 | -825,415 | -1,815,913 | -2,806,411 | -9,079,565 | -14,032,055 | -30,870,521 | -154,352,605 |
Here are some more numbers to try:
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