A:
Positive:
1 x 42041203773 x 5759069127 x 3310331137 x 3068701331 x 12701279271 x 4534710001 x 4203717399 x 24163
Negative:
-1 x -420412037-73 x -5759069-127 x -3310331-137 x -3068701-331 x -1270127-9271 x -45347-10001 x -42037-17399 x -24163
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 420,412,037, 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 | 420,412,037 | |
| -1 | -420,412,037 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 420,412,037.
Example:
1 x 420,412,037 = 420,412,037
and
-1 x -420,412,037 = 420,412,037
Notice both answers equal 420,412,037
With that explanation out of the way, let's continue. Next, we take the number 420,412,037 and divide it by 2:
420,412,037 ÷ 2 = 210,206,018.5
If the quotient is a whole number, then 2 and 210,206,018.5 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 | 420,412,037 | |
| -1 | -420,412,037 |
Now, we try dividing 420,412,037 by 3:
420,412,037 ÷ 3 = 140,137,345.6667
If the quotient is a whole number, then 3 and 140,137,345.6667 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 | 420,412,037 | |
| -1 | -420,412,037 |
Let's try dividing by 4:
420,412,037 ÷ 4 = 105,103,009.25
If the quotient is a whole number, then 4 and 105,103,009.25 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 | 420,412,037 | |
| -1 | 420,412,037 |
If you did it right, you will end up with this table:
| 1 | 73 | 127 | 137 | 331 | 9,271 | 10,001 | 17,399 | 24,163 | 42,037 | 45,347 | 1,270,127 | 3,068,701 | 3,310,331 | 5,759,069 | 420,412,037 |
| -1 | -73 | -127 | -137 | -331 | -9,271 | -10,001 | -17,399 | -24,163 | -42,037 | -45,347 | -1,270,127 | -3,068,701 | -3,310,331 | -5,759,069 | -420,412,037 |
Here are some more numbers to try:
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