Calculate the Greatest Common Factor or GCF of 36, 50, 52 and 54
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The instructions to find the GCF of 36, 50, 52 and 54 are the next:
1. Decompose all numbers into prime factors
| 36 | 2 |
| 18 | 2 |
| 9 | 3 |
| 3 | 3 |
| 1 |
| 50 | 2 |
| 25 | 5 |
| 5 | 5 |
| 1 |
| 52 | 2 |
| 26 | 2 |
| 13 | 13 |
| 1 |
| 54 | 2 |
| 27 | 3 |
| 9 | 3 |
| 3 | 3 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 36 | = | 22 . 32 |
| Prime factors of 50 | = | 2 . 52 |
| Prime factors of 52 | = | 22 . 13 |
| Prime factors of 54 | = | 2 . 33 |
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
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