A:
Positive:
1 x 1510076055 x 302015217 x 2157251535 x 4314503311 x 4855551555 x 971112177 x 6936510885 x 13873
Negative:
-1 x -151007605-5 x -30201521-7 x -21572515-35 x -4314503-311 x -485555-1555 x -97111-2177 x -69365-10885 x -13873
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 151,007,605, 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 | 151,007,605 | |
| -1 | -151,007,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,007,605.
Example:
1 x 151,007,605 = 151,007,605
and
-1 x -151,007,605 = 151,007,605
Notice both answers equal 151,007,605
With that explanation out of the way, let's continue. Next, we take the number 151,007,605 and divide it by 2:
151,007,605 ÷ 2 = 75,503,802.5
If the quotient is a whole number, then 2 and 75,503,802.5 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 | 151,007,605 | |
| -1 | -151,007,605 |
Now, we try dividing 151,007,605 by 3:
151,007,605 ÷ 3 = 50,335,868.3333
If the quotient is a whole number, then 3 and 50,335,868.3333 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 | 151,007,605 | |
| -1 | -151,007,605 |
Let's try dividing by 4:
151,007,605 ÷ 4 = 37,751,901.25
If the quotient is a whole number, then 4 and 37,751,901.25 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 | 151,007,605 | |
| -1 | 151,007,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 311 | 1,555 | 2,177 | 10,885 | 13,873 | 69,365 | 97,111 | 485,555 | 4,314,503 | 21,572,515 | 30,201,521 | 151,007,605 |
| -1 | -5 | -7 | -35 | -311 | -1,555 | -2,177 | -10,885 | -13,873 | -69,365 | -97,111 | -485,555 | -4,314,503 | -21,572,515 | -30,201,521 | -151,007,605 |
Here are some more numbers to try:
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