A:
Positive:
1 x 2530315337 x 68386959 x 42886767 x 377659173 x 1462612183 x 115912479 x 102073953 x 6401
Negative:
-1 x -25303153-37 x -683869-59 x -428867-67 x -377659-173 x -146261-2183 x -11591-2479 x -10207-3953 x -6401
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 25,303,153, 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 | 25,303,153 | |
| -1 | -25,303,153 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,303,153.
Example:
1 x 25,303,153 = 25,303,153
and
-1 x -25,303,153 = 25,303,153
Notice both answers equal 25,303,153
With that explanation out of the way, let's continue. Next, we take the number 25,303,153 and divide it by 2:
25,303,153 ÷ 2 = 12,651,576.5
If the quotient is a whole number, then 2 and 12,651,576.5 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 | 25,303,153 | |
| -1 | -25,303,153 |
Now, we try dividing 25,303,153 by 3:
25,303,153 ÷ 3 = 8,434,384.3333
If the quotient is a whole number, then 3 and 8,434,384.3333 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 | 25,303,153 | |
| -1 | -25,303,153 |
Let's try dividing by 4:
25,303,153 ÷ 4 = 6,325,788.25
If the quotient is a whole number, then 4 and 6,325,788.25 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 | 25,303,153 | |
| -1 | 25,303,153 |
If you did it right, you will end up with this table:
| 1 | 37 | 59 | 67 | 173 | 2,183 | 2,479 | 3,953 | 6,401 | 10,207 | 11,591 | 146,261 | 377,659 | 428,867 | 683,869 | 25,303,153 |
| -1 | -37 | -59 | -67 | -173 | -2,183 | -2,479 | -3,953 | -6,401 | -10,207 | -11,591 | -146,261 | -377,659 | -428,867 | -683,869 | -25,303,153 |
Here are some more numbers to try:
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