Answers

The gcf of 40 and 50 is 10.

Steps to find GCF

1. Find the prime factorization of 40
   40 = 2 × 2 × 2 × 5
2. Find the prime factorization of 50
   50 = 2 × 5 × 5
3. To find the gcf, multiply all the prime factors common to both numbers:
   
   Therefore, GCF = 2 × 5
4. GCF = 10

The greatest common factor (gcf) is also known as greatest common divisor (gcd) or highest common factor (hcf).

Related

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GCF Calculator

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