A:
Positive:
1 x 1513514055 x 30270281109 x 1388545331 x 457255545 x 277709839 x 1803951655 x 914514195 x 36079
Negative:
-1 x -151351405-5 x -30270281-109 x -1388545-331 x -457255-545 x -277709-839 x -180395-1655 x -91451-4195 x -36079
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 151,351,405, 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 | 151,351,405 | |
| -1 | -151,351,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,351,405.
Example:
1 x 151,351,405 = 151,351,405
and
-1 x -151,351,405 = 151,351,405
Notice both answers equal 151,351,405
With that explanation out of the way, let's continue. Next, we take the number 151,351,405 and divide it by 2:
151,351,405 ÷ 2 = 75,675,702.5
If the quotient is a whole number, then 2 and 75,675,702.5 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 | 151,351,405 | |
| -1 | -151,351,405 |
Now, we try dividing 151,351,405 by 3:
151,351,405 ÷ 3 = 50,450,468.3333
If the quotient is a whole number, then 3 and 50,450,468.3333 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 | 151,351,405 | |
| -1 | -151,351,405 |
Let's try dividing by 4:
151,351,405 ÷ 4 = 37,837,851.25
If the quotient is a whole number, then 4 and 37,837,851.25 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 | 151,351,405 | |
| -1 | 151,351,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 109 | 331 | 545 | 839 | 1,655 | 4,195 | 36,079 | 91,451 | 180,395 | 277,709 | 457,255 | 1,388,545 | 30,270,281 | 151,351,405 |
| -1 | -5 | -109 | -331 | -545 | -839 | -1,655 | -4,195 | -36,079 | -91,451 | -180,395 | -277,709 | -457,255 | -1,388,545 | -30,270,281 | -151,351,405 |
Here are some more numbers to try:
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