A:
Positive:
1 x 751784955 x 150356997 x 1073978535 x 214795749 x 153425583 x 905765245 x 306851415 x 181153581 x 1293952905 x 258793697 x 203354067 x 18485
Negative:
-1 x -75178495-5 x -15035699-7 x -10739785-35 x -2147957-49 x -1534255-83 x -905765-245 x -306851-415 x -181153-581 x -129395-2905 x -25879-3697 x -20335-4067 x -18485
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 75,178,495, 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 | 75,178,495 | |
| -1 | -75,178,495 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 75,178,495.
Example:
1 x 75,178,495 = 75,178,495
and
-1 x -75,178,495 = 75,178,495
Notice both answers equal 75,178,495
With that explanation out of the way, let's continue. Next, we take the number 75,178,495 and divide it by 2:
75,178,495 ÷ 2 = 37,589,247.5
If the quotient is a whole number, then 2 and 37,589,247.5 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 | 75,178,495 | |
| -1 | -75,178,495 |
Now, we try dividing 75,178,495 by 3:
75,178,495 ÷ 3 = 25,059,498.3333
If the quotient is a whole number, then 3 and 25,059,498.3333 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 | 75,178,495 | |
| -1 | -75,178,495 |
Let's try dividing by 4:
75,178,495 ÷ 4 = 18,794,623.75
If the quotient is a whole number, then 4 and 18,794,623.75 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 | 75,178,495 | |
| -1 | 75,178,495 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 83 | 245 | 415 | 581 | 2,905 | 3,697 | 4,067 | 18,485 | 20,335 | 25,879 | 129,395 | 181,153 | 306,851 | 905,765 | 1,534,255 | 2,147,957 | 10,739,785 | 15,035,699 | 75,178,495 |
| -1 | -5 | -7 | -35 | -49 | -83 | -245 | -415 | -581 | -2,905 | -3,697 | -4,067 | -18,485 | -20,335 | -25,879 | -129,395 | -181,153 | -306,851 | -905,765 | -1,534,255 | -2,147,957 | -10,739,785 | -15,035,699 | -75,178,495 |
Here are some more numbers to try:
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