Calculate the Greatest Common Factor or GCF of 72 and 2920
Sponsors
The instructions to find the GCF of 72 and 2920 are the next:
1. Decompose all numbers into prime factors
72 | 2 |
36 | 2 |
18 | 2 |
9 | 3 |
3 | 3 |
1 |
2920 | 2 |
1460 | 2 |
730 | 2 |
365 | 5 |
73 | 73 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 72 | = | 23 . 32 |
Prime factors of 2920 | = | 23 . 5 . 73 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2
Common prime factors with the lowest exponent: 23
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 = 23 = 8
Also calculates the: