Calculate the Greatest Common Factor or GCF of 50, 126 and 196
Sponsors
The instructions to find the GCF of 50, 126 and 196 are the next:
1. Decompose all numbers into prime factors
| 50 | 2 |
| 25 | 5 |
| 5 | 5 |
| 1 |
| 126 | 2 |
| 63 | 3 |
| 21 | 3 |
| 7 | 7 |
| 1 |
| 196 | 2 |
| 98 | 2 |
| 49 | 7 |
| 7 | 7 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 50 | = | 2 . 52 |
| Prime factors of 126 | = | 2 . 32 . 7 |
| Prime factors of 196 | = | 22 . 72 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2
Common prime factors with the lowest exponent: 21
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 = 21 = 2
Also calculates the: