What is the GCF of 686 and 858?
The GCF of 686 and 858 is 2.
Steps to find GCF
- Find the prime factorization of 686
686 = 2 × 7 × 7 × 7 - Find the prime factorization of 858
858 = 2 × 3 × 11 × 13 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 2
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Related
Find HCF of: 1372 & 1716 343 & 429 2058 & 2574 3430 & 4290 4802 & 6006 1372 & 858 686 & 1716 2058 & 858 686 & 2574 3430 & 858 686 & 4290 4802 & 858 686 & 6006
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).