A:
Positive:
1 x 1511858117 x 2159797317 x 889328337 x 4086103119 x 1270469259 x 583729629 x 2403594403 x 34337
Negative:
-1 x -151185811-7 x -21597973-17 x -8893283-37 x -4086103-119 x -1270469-259 x -583729-629 x -240359-4403 x -34337
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 151,185,811, 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 | 151,185,811 | |
| -1 | -151,185,811 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,185,811.
Example:
1 x 151,185,811 = 151,185,811
and
-1 x -151,185,811 = 151,185,811
Notice both answers equal 151,185,811
With that explanation out of the way, let's continue. Next, we take the number 151,185,811 and divide it by 2:
151,185,811 ÷ 2 = 75,592,905.5
If the quotient is a whole number, then 2 and 75,592,905.5 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 | 151,185,811 | |
| -1 | -151,185,811 |
Now, we try dividing 151,185,811 by 3:
151,185,811 ÷ 3 = 50,395,270.3333
If the quotient is a whole number, then 3 and 50,395,270.3333 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 | 151,185,811 | |
| -1 | -151,185,811 |
Let's try dividing by 4:
151,185,811 ÷ 4 = 37,796,452.75
If the quotient is a whole number, then 4 and 37,796,452.75 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 | 151,185,811 | |
| -1 | 151,185,811 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 37 | 119 | 259 | 629 | 4,403 | 34,337 | 240,359 | 583,729 | 1,270,469 | 4,086,103 | 8,893,283 | 21,597,973 | 151,185,811 |
| -1 | -7 | -17 | -37 | -119 | -259 | -629 | -4,403 | -34,337 | -240,359 | -583,729 | -1,270,469 | -4,086,103 | -8,893,283 | -21,597,973 | -151,185,811 |
Here are some more numbers to try:
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