Calculate the Greatest Common Factor or GCF of 38, 74 and 246
Sponsors
The instructions to find the GCF of 38, 74 and 246 are the next:
1. Decompose all numbers into prime factors
38 | 2 |
19 | 19 |
1 |
74 | 2 |
37 | 37 |
1 |
246 | 2 |
123 | 3 |
41 | 41 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 38 | = | 2 . 19 |
Prime factors of 74 | = | 2 . 37 |
Prime factors of 246 | = | 2 . 3 . 41 |
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: