The factors of 42 are shown below. Which of them are not prime?1 2 3 6 7 14 21 42

The factors of 42 which are not prime numbers are 1, 6, 14, 21, and 42. The factors of 42 are: 1 2 3 6 7 14 21 42 To determine which of these are not prime, we need to look for numbers that have more than two distinct positive divisors. A prime number has exactly two distinct positive divisors: 1 and itself. Let's review each factor: 1 is not a prime number because it has only one divisor: itself. 2 is a prime number. 3 is a prime number. 6 is not a prime number because it has divisors: 1, 2, 3, and 6. 7 is a prime number. 14 is not a prime number because it has divisors: 1, 2, 7, and 14. 21 is not a prime number because it has divisors: 1, 3, 7, and 21. 42 is not a prime number because it has divisors: 1, 2, 3, 6, 7, 14, 21, and 42. Therefore, the factors of 42 that are not prime numbers are: 1, 6, 14, 21, and 42.

Final answer: The factors of 42 that are not prime numbers are 1, 6, 14, 21, and 42 because they have more than two factors, which disqualifies them from being prime. Explanation: The factors of 42 given are 1, 2, 3, 6, 7, 14, 21, and 42. Prime numbers are numbers which have only two factors: 1 and itself. Looking at the list, the prime numbers are 2, 3, and 7. That means the numbers that are not prime are 1, 6, 14, 21, and 42. These numbers have more than two factors, making them not prime. Learn more about Prime Numbers here: brainly.com/question/30358834 #SPJ2