About Prime Numbers and Factors Quiz #842
Prime Numbers and Factors Quiz #842 was the quiz for Thursday, October 22, 2026: 10 questions: 4 easy, 3 medium and 3 hard. Everyone who played Prime Numbers and Factors Quiz that day got the same quiz, and it stays here to play for 60 days.
The questions of Prime Numbers and Factors Quiz #842
- What is the next prime number after 53?
- Which of these numbers is a prime number?
- What is the next prime number after 13?
- What is 5 squared?
- What is the square root of 49?
- Which of these numbers is NOT a prime number?
- What is the greatest common factor of 64 and 24?
- What is the greatest common factor of 24 and 36?
- What is the least common multiple of 16 and 24?
- How many prime numbers are there between 20 and 40?
The answer options and the answers appear only when you play the quiz, one question at a time.
New to Prime Numbers and Factors Quiz? The rules, tips and common questions are on the Prime Numbers and Factors Quiz page.
Other days of Prime Numbers and Factors Quiz
- Prime Numbers and Factors Quiz #845, Oct 25
- Prime Numbers and Factors Quiz #844, Oct 24
- Prime Numbers and Factors Quiz #843, Oct 23
- Prime Numbers and Factors Quiz #841, Oct 21
- Prime Numbers and Factors Quiz #840, Oct 20
- Prime Numbers and Factors Quiz #839, Oct 19
- Today’s quiz, #851
Every day of the last 60 is in the puzzle archive.