What is the greatest common factor of 12 and 18?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the CSET Multiple Subjects Subtest 2. Dive into math and science with flashcards and multiple choice questions, each question offering hints and explanations. Gear up for your success!

Multiple Choice

What is the greatest common factor of 12 and 18?

Explanation:
Finding the greatest common factor means identifying the largest number that divides both numbers exactly. For 12 and 18, list their factors: 12 has 1, 2, 3, 4, 6, 12; 18 has 1, 2, 3, 6, 9, 18. The common factors are 1, 2, 3, and 6, with 6 as the largest. So the greatest common factor is 6. (If you prefer prime factors: 12 = 2^2 * 3 and 18 = 2 * 3^2. The common primes with smallest exponents are 2^1 and 3^1, giving 2 * 3 = 6.)

Finding the greatest common factor means identifying the largest number that divides both numbers exactly. For 12 and 18, list their factors: 12 has 1, 2, 3, 4, 6, 12; 18 has 1, 2, 3, 6, 9, 18. The common factors are 1, 2, 3, and 6, with 6 as the largest. So the greatest common factor is 6.

(If you prefer prime factors: 12 = 2^2 * 3 and 18 = 2 * 3^2. The common primes with smallest exponents are 2^1 and 3^1, giving 2 * 3 = 6.)

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy