A:
Positive:
1 x 14740021717 x 867060161 x 2416397307 x 480131463 x 3183591037 x 1421415219 x 282437871 x 18727
Negative:
-1 x -147400217-17 x -8670601-61 x -2416397-307 x -480131-463 x -318359-1037 x -142141-5219 x -28243-7871 x -18727
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 147,400,217, 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 | 147,400,217 | |
| -1 | -147,400,217 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 147,400,217.
Example:
1 x 147,400,217 = 147,400,217
and
-1 x -147,400,217 = 147,400,217
Notice both answers equal 147,400,217
With that explanation out of the way, let's continue. Next, we take the number 147,400,217 and divide it by 2:
147,400,217 ÷ 2 = 73,700,108.5
If the quotient is a whole number, then 2 and 73,700,108.5 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 | 147,400,217 | |
| -1 | -147,400,217 |
Now, we try dividing 147,400,217 by 3:
147,400,217 ÷ 3 = 49,133,405.6667
If the quotient is a whole number, then 3 and 49,133,405.6667 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 | 147,400,217 | |
| -1 | -147,400,217 |
Let's try dividing by 4:
147,400,217 ÷ 4 = 36,850,054.25
If the quotient is a whole number, then 4 and 36,850,054.25 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 | 147,400,217 | |
| -1 | 147,400,217 |
If you did it right, you will end up with this table:
| 1 | 17 | 61 | 307 | 463 | 1,037 | 5,219 | 7,871 | 18,727 | 28,243 | 142,141 | 318,359 | 480,131 | 2,416,397 | 8,670,601 | 147,400,217 |
| -1 | -17 | -61 | -307 | -463 | -1,037 | -5,219 | -7,871 | -18,727 | -28,243 | -142,141 | -318,359 | -480,131 | -2,416,397 | -8,670,601 | -147,400,217 |
Here are some more numbers to try:
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