A:
Positive:
1 x 1537635197 x 2196621713 x 1182796349 x 313803191 x 1689709199 x 772681637 x 2413871213 x 1267631393 x 1103832587 x 594378491 x 181099751 x 15769
Negative:
-1 x -153763519-7 x -21966217-13 x -11827963-49 x -3138031-91 x -1689709-199 x -772681-637 x -241387-1213 x -126763-1393 x -110383-2587 x -59437-8491 x -18109-9751 x -15769
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 153,763,519, 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 | 153,763,519 | |
| -1 | -153,763,519 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,763,519.
Example:
1 x 153,763,519 = 153,763,519
and
-1 x -153,763,519 = 153,763,519
Notice both answers equal 153,763,519
With that explanation out of the way, let's continue. Next, we take the number 153,763,519 and divide it by 2:
153,763,519 ÷ 2 = 76,881,759.5
If the quotient is a whole number, then 2 and 76,881,759.5 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 | 153,763,519 | |
| -1 | -153,763,519 |
Now, we try dividing 153,763,519 by 3:
153,763,519 ÷ 3 = 51,254,506.3333
If the quotient is a whole number, then 3 and 51,254,506.3333 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 | 153,763,519 | |
| -1 | -153,763,519 |
Let's try dividing by 4:
153,763,519 ÷ 4 = 38,440,879.75
If the quotient is a whole number, then 4 and 38,440,879.75 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 | 153,763,519 | |
| -1 | 153,763,519 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 49 | 91 | 199 | 637 | 1,213 | 1,393 | 2,587 | 8,491 | 9,751 | 15,769 | 18,109 | 59,437 | 110,383 | 126,763 | 241,387 | 772,681 | 1,689,709 | 3,138,031 | 11,827,963 | 21,966,217 | 153,763,519 |
| -1 | -7 | -13 | -49 | -91 | -199 | -637 | -1,213 | -1,393 | -2,587 | -8,491 | -9,751 | -15,769 | -18,109 | -59,437 | -110,383 | -126,763 | -241,387 | -772,681 | -1,689,709 | -3,138,031 | -11,827,963 | -21,966,217 | -153,763,519 |
Here are some more numbers to try:
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