A:
Positive:
1 x 4251455055 x 8502910183 x 5122235415 x 1024447499 x 8519952053 x 2070852495 x 17039910265 x 41417
Negative:
-1 x -425145505-5 x -85029101-83 x -5122235-415 x -1024447-499 x -851995-2053 x -207085-2495 x -170399-10265 x -41417
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 425,145,505, 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 | 425,145,505 | |
| -1 | -425,145,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 425,145,505.
Example:
1 x 425,145,505 = 425,145,505
and
-1 x -425,145,505 = 425,145,505
Notice both answers equal 425,145,505
With that explanation out of the way, let's continue. Next, we take the number 425,145,505 and divide it by 2:
425,145,505 ÷ 2 = 212,572,752.5
If the quotient is a whole number, then 2 and 212,572,752.5 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 | 425,145,505 | |
| -1 | -425,145,505 |
Now, we try dividing 425,145,505 by 3:
425,145,505 ÷ 3 = 141,715,168.3333
If the quotient is a whole number, then 3 and 141,715,168.3333 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 | 425,145,505 | |
| -1 | -425,145,505 |
Let's try dividing by 4:
425,145,505 ÷ 4 = 106,286,376.25
If the quotient is a whole number, then 4 and 106,286,376.25 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 | 425,145,505 | |
| -1 | 425,145,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 415 | 499 | 2,053 | 2,495 | 10,265 | 41,417 | 170,399 | 207,085 | 851,995 | 1,024,447 | 5,122,235 | 85,029,101 | 425,145,505 |
| -1 | -5 | -83 | -415 | -499 | -2,053 | -2,495 | -10,265 | -41,417 | -170,399 | -207,085 | -851,995 | -1,024,447 | -5,122,235 | -85,029,101 | -425,145,505 |
Here are some more numbers to try:
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