A:
Positive:
1 x 766514217 x 1095020311 x 696831177 x 995473641 x 1195811553 x 493574487 x 170837051 x 10871
Negative:
-1 x -76651421-7 x -10950203-11 x -6968311-77 x -995473-641 x -119581-1553 x -49357-4487 x -17083-7051 x -10871
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 76,651,421, 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 | 76,651,421 | |
| -1 | -76,651,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 76,651,421.
Example:
1 x 76,651,421 = 76,651,421
and
-1 x -76,651,421 = 76,651,421
Notice both answers equal 76,651,421
With that explanation out of the way, let's continue. Next, we take the number 76,651,421 and divide it by 2:
76,651,421 ÷ 2 = 38,325,710.5
If the quotient is a whole number, then 2 and 38,325,710.5 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 | 76,651,421 | |
| -1 | -76,651,421 |
Now, we try dividing 76,651,421 by 3:
76,651,421 ÷ 3 = 25,550,473.6667
If the quotient is a whole number, then 3 and 25,550,473.6667 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 | 76,651,421 | |
| -1 | -76,651,421 |
Let's try dividing by 4:
76,651,421 ÷ 4 = 19,162,855.25
If the quotient is a whole number, then 4 and 19,162,855.25 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 | 76,651,421 | |
| -1 | 76,651,421 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 641 | 1,553 | 4,487 | 7,051 | 10,871 | 17,083 | 49,357 | 119,581 | 995,473 | 6,968,311 | 10,950,203 | 76,651,421 |
| -1 | -7 | -11 | -77 | -641 | -1,553 | -4,487 | -7,051 | -10,871 | -17,083 | -49,357 | -119,581 | -995,473 | -6,968,311 | -10,950,203 | -76,651,421 |
Here are some more numbers to try:
Try the factor calculator