Calculate the Greatest Common Factor or GCF of 3900
Sponsors
The instructions to find the GCF of 3900 are the next:
1. Decompose all numbers into prime factors
| 3900 | 2 |
| 1950 | 2 |
| 975 | 3 |
| 325 | 5 |
| 65 | 5 |
| 13 | 13 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 3900 | = | 22 . 3 . 52 . 13 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 3 , 5 , 13
Common prime factors with the lowest exponent: 22, 31, 52, 131
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 = 22. 31. 52. 131 = 3900
Also calculates the: