A:
Positive:
1 x 424791555 x 849583119 x 223574595 x 447149149 x 285095745 x 570192831 x 150053001 x 14155
Negative:
-1 x -42479155-5 x -8495831-19 x -2235745-95 x -447149-149 x -285095-745 x -57019-2831 x -15005-3001 x -14155
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 42,479,155, 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 | 42,479,155 | |
| -1 | -42,479,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,479,155.
Example:
1 x 42,479,155 = 42,479,155
and
-1 x -42,479,155 = 42,479,155
Notice both answers equal 42,479,155
With that explanation out of the way, let's continue. Next, we take the number 42,479,155 and divide it by 2:
42,479,155 ÷ 2 = 21,239,577.5
If the quotient is a whole number, then 2 and 21,239,577.5 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 | 42,479,155 | |
| -1 | -42,479,155 |
Now, we try dividing 42,479,155 by 3:
42,479,155 ÷ 3 = 14,159,718.3333
If the quotient is a whole number, then 3 and 14,159,718.3333 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 | 42,479,155 | |
| -1 | -42,479,155 |
Let's try dividing by 4:
42,479,155 ÷ 4 = 10,619,788.75
If the quotient is a whole number, then 4 and 10,619,788.75 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 | 42,479,155 | |
| -1 | 42,479,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 149 | 745 | 2,831 | 3,001 | 14,155 | 15,005 | 57,019 | 285,095 | 447,149 | 2,235,745 | 8,495,831 | 42,479,155 |
| -1 | -5 | -19 | -95 | -149 | -745 | -2,831 | -3,001 | -14,155 | -15,005 | -57,019 | -285,095 | -447,149 | -2,235,745 | -8,495,831 | -42,479,155 |
Here are some more numbers to try:
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