Question

find HCF for 320 and 680
​process

Answer 1

Step-by-step explanation:

1. Find the prime factorization of 320

2. 320 = 2 × 2 × 2 × 2 × 2 × 2 × 5

3. Find the prime factorization of 680

4. 680 = 2 × 2 × 2 × 5 × 17

5. To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 2 × 2 × 5

GCF = 40

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