A:
Positive:
1 x 1405541155 x 2811082313 x 1081185519 x 739758565 x 216237195 x 1479517247 x 5690451235 x 113809
Negative:
-1 x -140554115-5 x -28110823-13 x -10811855-19 x -7397585-65 x -2162371-95 x -1479517-247 x -569045-1235 x -113809
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 140,554,115, 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 | 140,554,115 | |
| -1 | -140,554,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,554,115.
Example:
1 x 140,554,115 = 140,554,115
and
-1 x -140,554,115 = 140,554,115
Notice both answers equal 140,554,115
With that explanation out of the way, let's continue. Next, we take the number 140,554,115 and divide it by 2:
140,554,115 ÷ 2 = 70,277,057.5
If the quotient is a whole number, then 2 and 70,277,057.5 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 | 140,554,115 | |
| -1 | -140,554,115 |
Now, we try dividing 140,554,115 by 3:
140,554,115 ÷ 3 = 46,851,371.6667
If the quotient is a whole number, then 3 and 46,851,371.6667 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 | 140,554,115 | |
| -1 | -140,554,115 |
Let's try dividing by 4:
140,554,115 ÷ 4 = 35,138,528.75
If the quotient is a whole number, then 4 and 35,138,528.75 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 | 140,554,115 | |
| -1 | 140,554,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 65 | 95 | 247 | 1,235 | 113,809 | 569,045 | 1,479,517 | 2,162,371 | 7,397,585 | 10,811,855 | 28,110,823 | 140,554,115 |
| -1 | -5 | -13 | -19 | -65 | -95 | -247 | -1,235 | -113,809 | -569,045 | -1,479,517 | -2,162,371 | -7,397,585 | -10,811,855 | -28,110,823 | -140,554,115 |
Here are some more numbers to try:
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