Calculate the Greatest Common Factor or GCF of 154, 250 and 450
Sponsors
The instructions to find the GCF of 154, 250 and 450 are the next:
1. Decompose all numbers into prime factors
| 154 | 2 |
| 77 | 7 |
| 11 | 11 |
| 1 |
| 250 | 2 |
| 125 | 5 |
| 25 | 5 |
| 5 | 5 |
| 1 |
| 450 | 2 |
| 225 | 3 |
| 75 | 3 |
| 25 | 5 |
| 5 | 5 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 154 | = | 2 . 7 . 11 |
| Prime factors of 250 | = | 2 . 53 |
| Prime factors of 450 | = | 2 . 32 . 52 |
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: