A:
Positive:
1 x 1447787155 x 2895574317 x 851639585 x 1703279491 x 2948652455 x 589733469 x 417358347 x 17345
Negative:
-1 x -144778715-5 x -28955743-17 x -8516395-85 x -1703279-491 x -294865-2455 x -58973-3469 x -41735-8347 x -17345
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 144,778,715, 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 | 144,778,715 | |
| -1 | -144,778,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 144,778,715.
Example:
1 x 144,778,715 = 144,778,715
and
-1 x -144,778,715 = 144,778,715
Notice both answers equal 144,778,715
With that explanation out of the way, let's continue. Next, we take the number 144,778,715 and divide it by 2:
144,778,715 ÷ 2 = 72,389,357.5
If the quotient is a whole number, then 2 and 72,389,357.5 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 | 144,778,715 | |
| -1 | -144,778,715 |
Now, we try dividing 144,778,715 by 3:
144,778,715 ÷ 3 = 48,259,571.6667
If the quotient is a whole number, then 3 and 48,259,571.6667 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 | 144,778,715 | |
| -1 | -144,778,715 |
Let's try dividing by 4:
144,778,715 ÷ 4 = 36,194,678.75
If the quotient is a whole number, then 4 and 36,194,678.75 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 | 144,778,715 | |
| -1 | 144,778,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 491 | 2,455 | 3,469 | 8,347 | 17,345 | 41,735 | 58,973 | 294,865 | 1,703,279 | 8,516,395 | 28,955,743 | 144,778,715 |
| -1 | -5 | -17 | -85 | -491 | -2,455 | -3,469 | -8,347 | -17,345 | -41,735 | -58,973 | -294,865 | -1,703,279 | -8,516,395 | -28,955,743 | -144,778,715 |
Here are some more numbers to try:
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