A:
Positive:
1 x 1515414255 x 303082857 x 2164877525 x 606165735 x 4329755107 x 1416275175 x 865951535 x 283255749 x 2023252675 x 566513745 x 404658093 x 18725
Negative:
-1 x -151541425-5 x -30308285-7 x -21648775-25 x -6061657-35 x -4329755-107 x -1416275-175 x -865951-535 x -283255-749 x -202325-2675 x -56651-3745 x -40465-8093 x -18725
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 151,541,425, 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 | 151,541,425 | |
| -1 | -151,541,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,541,425.
Example:
1 x 151,541,425 = 151,541,425
and
-1 x -151,541,425 = 151,541,425
Notice both answers equal 151,541,425
With that explanation out of the way, let's continue. Next, we take the number 151,541,425 and divide it by 2:
151,541,425 ÷ 2 = 75,770,712.5
If the quotient is a whole number, then 2 and 75,770,712.5 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 | 151,541,425 | |
| -1 | -151,541,425 |
Now, we try dividing 151,541,425 by 3:
151,541,425 ÷ 3 = 50,513,808.3333
If the quotient is a whole number, then 3 and 50,513,808.3333 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 | 151,541,425 | |
| -1 | -151,541,425 |
Let's try dividing by 4:
151,541,425 ÷ 4 = 37,885,356.25
If the quotient is a whole number, then 4 and 37,885,356.25 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 | 151,541,425 | |
| -1 | 151,541,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 107 | 175 | 535 | 749 | 2,675 | 3,745 | 8,093 | 18,725 | 40,465 | 56,651 | 202,325 | 283,255 | 865,951 | 1,416,275 | 4,329,755 | 6,061,657 | 21,648,775 | 30,308,285 | 151,541,425 |
| -1 | -5 | -7 | -25 | -35 | -107 | -175 | -535 | -749 | -2,675 | -3,745 | -8,093 | -18,725 | -40,465 | -56,651 | -202,325 | -283,255 | -865,951 | -1,416,275 | -4,329,755 | -6,061,657 | -21,648,775 | -30,308,285 | -151,541,425 |
Here are some more numbers to try:
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