0% 0 votes, 0 avg 0 Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. Duration: 20 minutes Sorry! Test time is over. Prime Time Read Test instructions - 📝 Total Questions: 20 🕒 Test Duration: 20 ✅ Test Format: MCQ 📚 Test Topic: Prime Time 🏆 Pass Score: 50% N.B. Do not refresh your browser during test time. 1 / 20 A number with only one factor is: Composite Prime 0 1 Incorrect Answer! Correct Answer! Explanation: 2 / 20 Which number is divisible by 8? 858 854 852 856 Incorrect Answer! Correct Answer! Explanation: 3 / 20 In the sieve method, which number is crossed out first? 0 3 1 2 Incorrect Answer! Correct Answer! Explanation: 4 / 20 How many prime numbers are there between 21 and 30? 2 3 1 4 Incorrect Answer! Correct Answer! Explanation: 5 / 20 The LCM of 4 and 6 is: 8 24 12 10 Incorrect Answer! Correct Answer! Explanation: 6 / 20 Which of the following is a composite number? 17 19 13 21 Incorrect Answer! Correct Answer! Explanation: 7 / 20 Which number is divisible by both 4 and 8? 18 12 16 20 Incorrect Answer! Correct Answer! Explanation: 8 / 20 Which number has prime factorisation 2 × 3 × 5? 90 60 30 15 Incorrect Answer! Correct Answer! Explanation: 9 / 20 Which jump size will land on both 14 and 36? 2 3 6 4 Incorrect Answer! Correct Answer! Explanation: 10 / 20 Which number is both prime and odd? 9 21 11 2 Incorrect Answer! Correct Answer! Explanation: 11 / 20 A number divisible by 5 must end in: 1 or 9 2 or 4 0 or 5 6 or 8 Incorrect Answer! Correct Answer! Explanation: 12 / 20 The HCF of two co-prime numbers is always: Composite 0 1 Prime Incorrect Answer! Correct Answer! Explanation: 13 / 20 Which statement is TRUE? All primes are odd 1 is a prime 2 is the only even prime All even numbers are prime Incorrect Answer! Correct Answer! Explanation: 14 / 20 Prime factorisation of 1000 is: 4 × 250 2³ × 5³ 20 × 50 10 × 100 Incorrect Answer! Correct Answer! Explanation: 15 / 20 How many times is “idli-vada” said between 1 and 90? 6 3 9 12 Incorrect Answer! Correct Answer! Explanation: 16 / 20 If two numbers are co-prime, their LCM equals: Difference Sum Product HCF Incorrect Answer! Correct Answer! Explanation: 17 / 20 A number divisible by 2 must be: Prime Multiple of 5 Even Odd Incorrect Answer! Correct Answer! Explanation: 18 / 20 Which number is divisible by 5? 234 457 112 980 Incorrect Answer! Correct Answer! Explanation: 19 / 20 Which number is divisible by 4? 1115 1113 1117 1112 Incorrect Answer! Correct Answer! Explanation: 20 / 20 The smallest perfect number is: 10 4 6 8 Incorrect Answer! Correct Answer! Explanation: Hello! Please enter your correct Name and Email to view your results for "Prime Time" test. Your score isThe average score is 0%Found this helpful? Challenge your friends! Share the %%quiz_name%% test and see who gets the highest score. LinkedIn Facebook VKontakte Hello %%user_name%%! 👨👩👧👦 Join Our Community 👇👇 0% Restart Test Give feedback on the "Prime Time" test. Thanks for your feedback. Send feedback
