Which of the following numbers is a prime number?, 15, 21, 17, 27, Which correctly shows the first branch of a factor tree for 36?, 3x10, 6x6, 4x8, 2x16, What is the prime factorization of 24 using prime factors?, 2 x 32, 4 x 6, 22 x 32, 23 x 3, Express 50 as a product of its prime factors in index form., 2 x 52, 22 x 5, 5 x 10, 23 x 5, Find the Highest Common Factor (HCF) of 12 and 18., 2, 6, 3, 36, Find the Lowest Common Multiple (LCM) of 6 and 8., 12, 16, 24, 48, Given 20 = 22 x 5 and 30 = 2 x 3 x 5, what is their HCF?, 5, 15, 60, 10, Given 12 = 22 x 3 and 20= 22 x 5 , What is their LCM?, 20, 120, 60, 30, What is the HCF of two prime numbers, such as 7 and 11?, 1, 0, 7, 77, Two lights flash together: Light A every 4 seconds and Light B every 6 seconds. After how many seconds will they flash together again?, 12 seconds, 10 seconds, 24 seconds, 16 seconds

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