What is the GCF of 843 and 1225?
The GCF of 843 and 1225 is 1.
Steps to find GCF
- Find the prime factorization of 843
843 = 3 × 281 - Find the prime factorization of 1225
1225 = 5 × 5 × 7 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Note that there are no common prime factors. - Therefore, GCF = 1 (since 1 is a factor of every number)
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Find HCF of: 1686 & 2450 2529 & 3675 4215 & 6125 5901 & 8575 1686 & 1225 843 & 2450 2529 & 1225 843 & 3675 4215 & 1225 843 & 6125 5901 & 1225 843 & 8575
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).