A:
Positive:
1 x 2455414455 x 4910828923 x 10675715115 x 21351431327 x 1850351609 x 1526056635 x 370078045 x 30521
Negative:
-1 x -245541445-5 x -49108289-23 x -10675715-115 x -2135143-1327 x -185035-1609 x -152605-6635 x -37007-8045 x -30521
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 245,541,445, 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 | 245,541,445 | |
| -1 | -245,541,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 245,541,445.
Example:
1 x 245,541,445 = 245,541,445
and
-1 x -245,541,445 = 245,541,445
Notice both answers equal 245,541,445
With that explanation out of the way, let's continue. Next, we take the number 245,541,445 and divide it by 2:
245,541,445 ÷ 2 = 122,770,722.5
If the quotient is a whole number, then 2 and 122,770,722.5 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 | 245,541,445 | |
| -1 | -245,541,445 |
Now, we try dividing 245,541,445 by 3:
245,541,445 ÷ 3 = 81,847,148.3333
If the quotient is a whole number, then 3 and 81,847,148.3333 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 | 245,541,445 | |
| -1 | -245,541,445 |
Let's try dividing by 4:
245,541,445 ÷ 4 = 61,385,361.25
If the quotient is a whole number, then 4 and 61,385,361.25 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 | 245,541,445 | |
| -1 | 245,541,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 1,327 | 1,609 | 6,635 | 8,045 | 30,521 | 37,007 | 152,605 | 185,035 | 2,135,143 | 10,675,715 | 49,108,289 | 245,541,445 |
| -1 | -5 | -23 | -115 | -1,327 | -1,609 | -6,635 | -8,045 | -30,521 | -37,007 | -152,605 | -185,035 | -2,135,143 | -10,675,715 | -49,108,289 | -245,541,445 |
Here are some more numbers to try:
Try the factor calculator