A:
Positive:
1 x 3017785617 x 4311122323 x 13120807161 x 1874401263 x 11474471841 x 1639216049 x 498897127 x 42343
Negative:
-1 x -301778561-7 x -43111223-23 x -13120807-161 x -1874401-263 x -1147447-1841 x -163921-6049 x -49889-7127 x -42343
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 301,778,561, 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 | 301,778,561 | |
| -1 | -301,778,561 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 301,778,561.
Example:
1 x 301,778,561 = 301,778,561
and
-1 x -301,778,561 = 301,778,561
Notice both answers equal 301,778,561
With that explanation out of the way, let's continue. Next, we take the number 301,778,561 and divide it by 2:
301,778,561 ÷ 2 = 150,889,280.5
If the quotient is a whole number, then 2 and 150,889,280.5 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 | 301,778,561 | |
| -1 | -301,778,561 |
Now, we try dividing 301,778,561 by 3:
301,778,561 ÷ 3 = 100,592,853.6667
If the quotient is a whole number, then 3 and 100,592,853.6667 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 | 301,778,561 | |
| -1 | -301,778,561 |
Let's try dividing by 4:
301,778,561 ÷ 4 = 75,444,640.25
If the quotient is a whole number, then 4 and 75,444,640.25 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 | 301,778,561 | |
| -1 | 301,778,561 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 161 | 263 | 1,841 | 6,049 | 7,127 | 42,343 | 49,889 | 163,921 | 1,147,447 | 1,874,401 | 13,120,807 | 43,111,223 | 301,778,561 |
| -1 | -7 | -23 | -161 | -263 | -1,841 | -6,049 | -7,127 | -42,343 | -49,889 | -163,921 | -1,147,447 | -1,874,401 | -13,120,807 | -43,111,223 | -301,778,561 |
Here are some more numbers to try:
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