A:
Positive:
1 x 24515165953 x 4625503107 x 2291137139 x 1763681311 x 7882695671 x 432297367 x 3327714873 x 16483
Negative:
-1 x -245151659-53 x -4625503-107 x -2291137-139 x -1763681-311 x -788269-5671 x -43229-7367 x -33277-14873 x -16483
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 245,151,659, 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 | 245,151,659 | |
| -1 | -245,151,659 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 245,151,659.
Example:
1 x 245,151,659 = 245,151,659
and
-1 x -245,151,659 = 245,151,659
Notice both answers equal 245,151,659
With that explanation out of the way, let's continue. Next, we take the number 245,151,659 and divide it by 2:
245,151,659 ÷ 2 = 122,575,829.5
If the quotient is a whole number, then 2 and 122,575,829.5 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 | 245,151,659 | |
| -1 | -245,151,659 |
Now, we try dividing 245,151,659 by 3:
245,151,659 ÷ 3 = 81,717,219.6667
If the quotient is a whole number, then 3 and 81,717,219.6667 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 | 245,151,659 | |
| -1 | -245,151,659 |
Let's try dividing by 4:
245,151,659 ÷ 4 = 61,287,914.75
If the quotient is a whole number, then 4 and 61,287,914.75 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 | 245,151,659 | |
| -1 | 245,151,659 |
If you did it right, you will end up with this table:
| 1 | 53 | 107 | 139 | 311 | 5,671 | 7,367 | 14,873 | 16,483 | 33,277 | 43,229 | 788,269 | 1,763,681 | 2,291,137 | 4,625,503 | 245,151,659 |
| -1 | -53 | -107 | -139 | -311 | -5,671 | -7,367 | -14,873 | -16,483 | -33,277 | -43,229 | -788,269 | -1,763,681 | -2,291,137 | -4,625,503 | -245,151,659 |
Here are some more numbers to try:
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