A:
Positive:
1 x 1516422655 x 30328453103 x 1472255277 x 547445515 x 2944511063 x 1426551385 x 1094895315 x 28531
Negative:
-1 x -151642265-5 x -30328453-103 x -1472255-277 x -547445-515 x -294451-1063 x -142655-1385 x -109489-5315 x -28531
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 151,642,265, 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 | 151,642,265 | |
| -1 | -151,642,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,642,265.
Example:
1 x 151,642,265 = 151,642,265
and
-1 x -151,642,265 = 151,642,265
Notice both answers equal 151,642,265
With that explanation out of the way, let's continue. Next, we take the number 151,642,265 and divide it by 2:
151,642,265 ÷ 2 = 75,821,132.5
If the quotient is a whole number, then 2 and 75,821,132.5 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 | 151,642,265 | |
| -1 | -151,642,265 |
Now, we try dividing 151,642,265 by 3:
151,642,265 ÷ 3 = 50,547,421.6667
If the quotient is a whole number, then 3 and 50,547,421.6667 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 | 151,642,265 | |
| -1 | -151,642,265 |
Let's try dividing by 4:
151,642,265 ÷ 4 = 37,910,566.25
If the quotient is a whole number, then 4 and 37,910,566.25 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 | 151,642,265 | |
| -1 | 151,642,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 103 | 277 | 515 | 1,063 | 1,385 | 5,315 | 28,531 | 109,489 | 142,655 | 294,451 | 547,445 | 1,472,255 | 30,328,453 | 151,642,265 |
| -1 | -5 | -103 | -277 | -515 | -1,063 | -1,385 | -5,315 | -28,531 | -109,489 | -142,655 | -294,451 | -547,445 | -1,472,255 | -30,328,453 | -151,642,265 |
Here are some more numbers to try:
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