A:
Positive:
1 x 422103555 x 844207111 x 383730555 x 767461127 x 332365635 x 664731397 x 302156043 x 6985
Negative:
-1 x -42210355-5 x -8442071-11 x -3837305-55 x -767461-127 x -332365-635 x -66473-1397 x -30215-6043 x -6985
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 42,210,355, 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 | 42,210,355 | |
| -1 | -42,210,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,210,355.
Example:
1 x 42,210,355 = 42,210,355
and
-1 x -42,210,355 = 42,210,355
Notice both answers equal 42,210,355
With that explanation out of the way, let's continue. Next, we take the number 42,210,355 and divide it by 2:
42,210,355 ÷ 2 = 21,105,177.5
If the quotient is a whole number, then 2 and 21,105,177.5 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 | 42,210,355 | |
| -1 | -42,210,355 |
Now, we try dividing 42,210,355 by 3:
42,210,355 ÷ 3 = 14,070,118.3333
If the quotient is a whole number, then 3 and 14,070,118.3333 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 | 42,210,355 | |
| -1 | -42,210,355 |
Let's try dividing by 4:
42,210,355 ÷ 4 = 10,552,588.75
If the quotient is a whole number, then 4 and 10,552,588.75 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 | 42,210,355 | |
| -1 | 42,210,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 127 | 635 | 1,397 | 6,043 | 6,985 | 30,215 | 66,473 | 332,365 | 767,461 | 3,837,305 | 8,442,071 | 42,210,355 |
| -1 | -5 | -11 | -55 | -127 | -635 | -1,397 | -6,043 | -6,985 | -30,215 | -66,473 | -332,365 | -767,461 | -3,837,305 | -8,442,071 | -42,210,355 |
Here are some more numbers to try:
Try the factor calculator