What is the GCF of 640 and 4203?
The GCF of 640 and 4203 is 1.
Steps to find GCF
- Find the prime factorization of 640
640 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 - Find the prime factorization of 4203
4203 = 3 × 3 × 467 - 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: 1280 & 8406 1280 & 4203 640 & 8406 1920 & 4203 3200 & 4203 4480 & 4203
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).