What is the GCF of 343 and 1619?
The GCF of 343 and 1619 is 1.
Steps to find GCF
- Find the prime factorization of 343
343 = 7 × 7 × 7 - Find the prime factorization of 1619
1619 = 1619 - 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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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).