A:
Positive:
1 x 1544300055 x 3088600119 x 812789595 x 1625579131 x 1178855655 x 2357712489 x 6204512409 x 12445
Negative:
-1 x -154430005-5 x -30886001-19 x -8127895-95 x -1625579-131 x -1178855-655 x -235771-2489 x -62045-12409 x -12445
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 154,430,005, 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 | 154,430,005 | |
| -1 | -154,430,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,430,005.
Example:
1 x 154,430,005 = 154,430,005
and
-1 x -154,430,005 = 154,430,005
Notice both answers equal 154,430,005
With that explanation out of the way, let's continue. Next, we take the number 154,430,005 and divide it by 2:
154,430,005 ÷ 2 = 77,215,002.5
If the quotient is a whole number, then 2 and 77,215,002.5 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 | 154,430,005 | |
| -1 | -154,430,005 |
Now, we try dividing 154,430,005 by 3:
154,430,005 ÷ 3 = 51,476,668.3333
If the quotient is a whole number, then 3 and 51,476,668.3333 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 | 154,430,005 | |
| -1 | -154,430,005 |
Let's try dividing by 4:
154,430,005 ÷ 4 = 38,607,501.25
If the quotient is a whole number, then 4 and 38,607,501.25 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 | 154,430,005 | |
| -1 | 154,430,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 131 | 655 | 2,489 | 12,409 | 12,445 | 62,045 | 235,771 | 1,178,855 | 1,625,579 | 8,127,895 | 30,886,001 | 154,430,005 |
| -1 | -5 | -19 | -95 | -131 | -655 | -2,489 | -12,409 | -12,445 | -62,045 | -235,771 | -1,178,855 | -1,625,579 | -8,127,895 | -30,886,001 | -154,430,005 |
Here are some more numbers to try:
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