A:
Positive:
1 x 665703555 x 13314071137 x 485915157 x 424015619 x 107545685 x 97183785 x 848033095 x 21509
Negative:
-1 x -66570355-5 x -13314071-137 x -485915-157 x -424015-619 x -107545-685 x -97183-785 x -84803-3095 x -21509
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 66,570,355, 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 | 66,570,355 | |
| -1 | -66,570,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,570,355.
Example:
1 x 66,570,355 = 66,570,355
and
-1 x -66,570,355 = 66,570,355
Notice both answers equal 66,570,355
With that explanation out of the way, let's continue. Next, we take the number 66,570,355 and divide it by 2:
66,570,355 ÷ 2 = 33,285,177.5
If the quotient is a whole number, then 2 and 33,285,177.5 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 | 66,570,355 | |
| -1 | -66,570,355 |
Now, we try dividing 66,570,355 by 3:
66,570,355 ÷ 3 = 22,190,118.3333
If the quotient is a whole number, then 3 and 22,190,118.3333 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 | 66,570,355 | |
| -1 | -66,570,355 |
Let's try dividing by 4:
66,570,355 ÷ 4 = 16,642,588.75
If the quotient is a whole number, then 4 and 16,642,588.75 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 | 66,570,355 | |
| -1 | 66,570,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 137 | 157 | 619 | 685 | 785 | 3,095 | 21,509 | 84,803 | 97,183 | 107,545 | 424,015 | 485,915 | 13,314,071 | 66,570,355 |
| -1 | -5 | -137 | -157 | -619 | -685 | -785 | -3,095 | -21,509 | -84,803 | -97,183 | -107,545 | -424,015 | -485,915 | -13,314,071 | -66,570,355 |
Here are some more numbers to try:
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