What is the GCF of 639 and 2450?
The GCF of 639 and 2450 is 1.
Steps to find GCF
- Find the prime factorization of 639
639 = 3 × 3 × 71 - Find the prime factorization of 2450
2450 = 2 × 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: 1278 & 4900 1917 & 7350 1278 & 2450 639 & 4900 1917 & 2450 639 & 7350 3195 & 2450 4473 & 2450
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).