3 years ago

What is the greatest common factor of 42, 30, and 45

Mathematics

1 answer:

Crank3 years ago

7 0

Answer:

GCF = 3

Step-by-step explanation:

Express the numbers as a product of their primes.

42 = 2 × 3 + 7

30 = 2 × 3 × 5

45 = 3 × 3 × 5

Identify the prime factors common to all 3 numbers.

common prime factor = 3 , thus

GCF = 3

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What is the greatest common factor of 42, 30, and 45​

What is the greatest common factor of 42, 30, and 45