Calculate the Greatest Common Factor or GCF of 567 and 648
Sponsors
The instructions to find the GCF of 567 and 648 are the next:
1. Decompose all numbers into prime factors
| 567 | 3 |
| 189 | 3 |
| 63 | 3 |
| 21 | 3 |
| 7 | 7 |
| 1 |
| 648 | 2 |
| 324 | 2 |
| 162 | 2 |
| 81 | 3 |
| 27 | 3 |
| 9 | 3 |
| 3 | 3 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 567 | = | 34 . 7 |
| Prime factors of 648 | = | 23 . 34 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 3
Common prime factors with the lowest exponent: 34
4. Calculate the Greatest Common Factor or GCF
Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.
GCF = 34 = 81
Also calculates the: