A:
Positive:
1 x 1545565637 x 2207950971 x 2176853101 x 1530263497 x 310979707 x 2186093079 x 501977171 x 21553
Negative:
-1 x -154556563-7 x -22079509-71 x -2176853-101 x -1530263-497 x -310979-707 x -218609-3079 x -50197-7171 x -21553
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 154,556,563, 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 | 154,556,563 | |
| -1 | -154,556,563 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,556,563.
Example:
1 x 154,556,563 = 154,556,563
and
-1 x -154,556,563 = 154,556,563
Notice both answers equal 154,556,563
With that explanation out of the way, let's continue. Next, we take the number 154,556,563 and divide it by 2:
154,556,563 ÷ 2 = 77,278,281.5
If the quotient is a whole number, then 2 and 77,278,281.5 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 | 154,556,563 | |
| -1 | -154,556,563 |
Now, we try dividing 154,556,563 by 3:
154,556,563 ÷ 3 = 51,518,854.3333
If the quotient is a whole number, then 3 and 51,518,854.3333 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 | 154,556,563 | |
| -1 | -154,556,563 |
Let's try dividing by 4:
154,556,563 ÷ 4 = 38,639,140.75
If the quotient is a whole number, then 4 and 38,639,140.75 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 | 154,556,563 | |
| -1 | 154,556,563 |
If you did it right, you will end up with this table:
| 1 | 7 | 71 | 101 | 497 | 707 | 3,079 | 7,171 | 21,553 | 50,197 | 218,609 | 310,979 | 1,530,263 | 2,176,853 | 22,079,509 | 154,556,563 |
| -1 | -7 | -71 | -101 | -497 | -707 | -3,079 | -7,171 | -21,553 | -50,197 | -218,609 | -310,979 | -1,530,263 | -2,176,853 | -22,079,509 | -154,556,563 |
Here are some more numbers to try:
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