A:
Positive:
1 x 25368076119 x 1335161947 x 539746361 x 4158701893 x 2840771159 x 2188792867 x 884834657 x 54473
Negative:
-1 x -253680761-19 x -13351619-47 x -5397463-61 x -4158701-893 x -284077-1159 x -218879-2867 x -88483-4657 x -54473
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 253,680,761, 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 | 253,680,761 | |
| -1 | -253,680,761 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 253,680,761.
Example:
1 x 253,680,761 = 253,680,761
and
-1 x -253,680,761 = 253,680,761
Notice both answers equal 253,680,761
With that explanation out of the way, let's continue. Next, we take the number 253,680,761 and divide it by 2:
253,680,761 ÷ 2 = 126,840,380.5
If the quotient is a whole number, then 2 and 126,840,380.5 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 | 253,680,761 | |
| -1 | -253,680,761 |
Now, we try dividing 253,680,761 by 3:
253,680,761 ÷ 3 = 84,560,253.6667
If the quotient is a whole number, then 3 and 84,560,253.6667 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 | 253,680,761 | |
| -1 | -253,680,761 |
Let's try dividing by 4:
253,680,761 ÷ 4 = 63,420,190.25
If the quotient is a whole number, then 4 and 63,420,190.25 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 | 253,680,761 | |
| -1 | 253,680,761 |
If you did it right, you will end up with this table:
| 1 | 19 | 47 | 61 | 893 | 1,159 | 2,867 | 4,657 | 54,473 | 88,483 | 218,879 | 284,077 | 4,158,701 | 5,397,463 | 13,351,619 | 253,680,761 |
| -1 | -19 | -47 | -61 | -893 | -1,159 | -2,867 | -4,657 | -54,473 | -88,483 | -218,879 | -284,077 | -4,158,701 | -5,397,463 | -13,351,619 | -253,680,761 |
Here are some more numbers to try:
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