A:
Positive:
1 x 25163411911 x 2287582917 x 1480200719 x 13243901187 x 1345637209 x 1203991323 x 7790533553 x 70823
Negative:
-1 x -251634119-11 x -22875829-17 x -14802007-19 x -13243901-187 x -1345637-209 x -1203991-323 x -779053-3553 x -70823
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 251,634,119, 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 | 251,634,119 | |
| -1 | -251,634,119 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 251,634,119.
Example:
1 x 251,634,119 = 251,634,119
and
-1 x -251,634,119 = 251,634,119
Notice both answers equal 251,634,119
With that explanation out of the way, let's continue. Next, we take the number 251,634,119 and divide it by 2:
251,634,119 ÷ 2 = 125,817,059.5
If the quotient is a whole number, then 2 and 125,817,059.5 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 | 251,634,119 | |
| -1 | -251,634,119 |
Now, we try dividing 251,634,119 by 3:
251,634,119 ÷ 3 = 83,878,039.6667
If the quotient is a whole number, then 3 and 83,878,039.6667 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 | 251,634,119 | |
| -1 | -251,634,119 |
Let's try dividing by 4:
251,634,119 ÷ 4 = 62,908,529.75
If the quotient is a whole number, then 4 and 62,908,529.75 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 | 251,634,119 | |
| -1 | 251,634,119 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 19 | 187 | 209 | 323 | 3,553 | 70,823 | 779,053 | 1,203,991 | 1,345,637 | 13,243,901 | 14,802,007 | 22,875,829 | 251,634,119 |
| -1 | -11 | -17 | -19 | -187 | -209 | -323 | -3,553 | -70,823 | -779,053 | -1,203,991 | -1,345,637 | -13,243,901 | -14,802,007 | -22,875,829 | -251,634,119 |
Here are some more numbers to try:
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