A:
Positive:
1 x 1867131555 x 3734263131 x 6023005155 x 1204601809 x 2307951489 x 1253954045 x 461597445 x 25079
Negative:
-1 x -186713155-5 x -37342631-31 x -6023005-155 x -1204601-809 x -230795-1489 x -125395-4045 x -46159-7445 x -25079
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 186,713,155, 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 | 186,713,155 | |
| -1 | -186,713,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 186,713,155.
Example:
1 x 186,713,155 = 186,713,155
and
-1 x -186,713,155 = 186,713,155
Notice both answers equal 186,713,155
With that explanation out of the way, let's continue. Next, we take the number 186,713,155 and divide it by 2:
186,713,155 ÷ 2 = 93,356,577.5
If the quotient is a whole number, then 2 and 93,356,577.5 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 | 186,713,155 | |
| -1 | -186,713,155 |
Now, we try dividing 186,713,155 by 3:
186,713,155 ÷ 3 = 62,237,718.3333
If the quotient is a whole number, then 3 and 62,237,718.3333 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 | 186,713,155 | |
| -1 | -186,713,155 |
Let's try dividing by 4:
186,713,155 ÷ 4 = 46,678,288.75
If the quotient is a whole number, then 4 and 46,678,288.75 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 | 186,713,155 | |
| -1 | 186,713,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 809 | 1,489 | 4,045 | 7,445 | 25,079 | 46,159 | 125,395 | 230,795 | 1,204,601 | 6,023,005 | 37,342,631 | 186,713,155 |
| -1 | -5 | -31 | -155 | -809 | -1,489 | -4,045 | -7,445 | -25,079 | -46,159 | -125,395 | -230,795 | -1,204,601 | -6,023,005 | -37,342,631 | -186,713,155 |
Here are some more numbers to try:
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