A:
Positive:
1 x 1561256417 x 2230366319 x 821713931 x 5036311133 x 1173877217 x 719473361 x 432481589 x 2650691993 x 783372527 x 617834123 x 3786711191 x 13951
Negative:
-1 x -156125641-7 x -22303663-19 x -8217139-31 x -5036311-133 x -1173877-217 x -719473-361 x -432481-589 x -265069-1993 x -78337-2527 x -61783-4123 x -37867-11191 x -13951
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 156,125,641, 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 | 156,125,641 | |
| -1 | -156,125,641 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,125,641.
Example:
1 x 156,125,641 = 156,125,641
and
-1 x -156,125,641 = 156,125,641
Notice both answers equal 156,125,641
With that explanation out of the way, let's continue. Next, we take the number 156,125,641 and divide it by 2:
156,125,641 ÷ 2 = 78,062,820.5
If the quotient is a whole number, then 2 and 78,062,820.5 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 | 156,125,641 | |
| -1 | -156,125,641 |
Now, we try dividing 156,125,641 by 3:
156,125,641 ÷ 3 = 52,041,880.3333
If the quotient is a whole number, then 3 and 52,041,880.3333 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 | 156,125,641 | |
| -1 | -156,125,641 |
Let's try dividing by 4:
156,125,641 ÷ 4 = 39,031,410.25
If the quotient is a whole number, then 4 and 39,031,410.25 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 | 156,125,641 | |
| -1 | 156,125,641 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 31 | 133 | 217 | 361 | 589 | 1,993 | 2,527 | 4,123 | 11,191 | 13,951 | 37,867 | 61,783 | 78,337 | 265,069 | 432,481 | 719,473 | 1,173,877 | 5,036,311 | 8,217,139 | 22,303,663 | 156,125,641 |
| -1 | -7 | -19 | -31 | -133 | -217 | -361 | -589 | -1,993 | -2,527 | -4,123 | -11,191 | -13,951 | -37,867 | -61,783 | -78,337 | -265,069 | -432,481 | -719,473 | -1,173,877 | -5,036,311 | -8,217,139 | -22,303,663 | -156,125,641 |
Here are some more numbers to try:
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