A:
Positive:
1 x 776575455 x 155315097 x 1109393523 x 337641535 x 2218787115 x 675283161 x 482345805 x 96469
Negative:
-1 x -77657545-5 x -15531509-7 x -11093935-23 x -3376415-35 x -2218787-115 x -675283-161 x -482345-805 x -96469
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 77,657,545, 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 | 77,657,545 | |
| -1 | -77,657,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,657,545.
Example:
1 x 77,657,545 = 77,657,545
and
-1 x -77,657,545 = 77,657,545
Notice both answers equal 77,657,545
With that explanation out of the way, let's continue. Next, we take the number 77,657,545 and divide it by 2:
77,657,545 ÷ 2 = 38,828,772.5
If the quotient is a whole number, then 2 and 38,828,772.5 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 | 77,657,545 | |
| -1 | -77,657,545 |
Now, we try dividing 77,657,545 by 3:
77,657,545 ÷ 3 = 25,885,848.3333
If the quotient is a whole number, then 3 and 25,885,848.3333 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 | 77,657,545 | |
| -1 | -77,657,545 |
Let's try dividing by 4:
77,657,545 ÷ 4 = 19,414,386.25
If the quotient is a whole number, then 4 and 19,414,386.25 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 | 77,657,545 | |
| -1 | 77,657,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 96,469 | 482,345 | 675,283 | 2,218,787 | 3,376,415 | 11,093,935 | 15,531,509 | 77,657,545 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -96,469 | -482,345 | -675,283 | -2,218,787 | -3,376,415 | -11,093,935 | -15,531,509 | -77,657,545 |
Here are some more numbers to try:
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