A:
Positive:
1 x 253064355 x 50612877 x 361520511 x 230058535 x 72304155 x 46011777 x 328655385 x 65731
Negative:
-1 x -25306435-5 x -5061287-7 x -3615205-11 x -2300585-35 x -723041-55 x -460117-77 x -328655-385 x -65731
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 25,306,435, 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 | 25,306,435 | |
| -1 | -25,306,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,306,435.
Example:
1 x 25,306,435 = 25,306,435
and
-1 x -25,306,435 = 25,306,435
Notice both answers equal 25,306,435
With that explanation out of the way, let's continue. Next, we take the number 25,306,435 and divide it by 2:
25,306,435 ÷ 2 = 12,653,217.5
If the quotient is a whole number, then 2 and 12,653,217.5 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 | 25,306,435 | |
| -1 | -25,306,435 |
Now, we try dividing 25,306,435 by 3:
25,306,435 ÷ 3 = 8,435,478.3333
If the quotient is a whole number, then 3 and 8,435,478.3333 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 | 25,306,435 | |
| -1 | -25,306,435 |
Let's try dividing by 4:
25,306,435 ÷ 4 = 6,326,608.75
If the quotient is a whole number, then 4 and 6,326,608.75 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 | 25,306,435 | |
| -1 | 25,306,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 65,731 | 328,655 | 460,117 | 723,041 | 2,300,585 | 3,615,205 | 5,061,287 | 25,306,435 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -65,731 | -328,655 | -460,117 | -723,041 | -2,300,585 | -3,615,205 | -5,061,287 | -25,306,435 |
Here are some more numbers to try:
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