Podcast
Questions and Answers
Which number follows 65 and precedes 67?
Which number follows 65 and precedes 67?
Which of the following is NOT a usage of the number 66 in mathematics?
Which of the following is NOT a usage of the number 66 in mathematics?
In which base is 66 a repdigit?
In which base is 66 a repdigit?
What is the atomic number of dysprosium?
What is the atomic number of dysprosium?
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What is the Messier object associated with the number 66?
What is the Messier object associated with the number 66?
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Study Notes
Numbers and Mathematics
- The number that follows 65 and precedes 67 is 66.
- The number 66 is not a known perfect number in mathematics.
- 66 is a repdigit in base 10.
Chemistry
- The atomic number of dysprosium is 66.
Astronomy
- The Messier object associated with the number 66 is M66.
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Description
Test your knowledge of the number 66 with this math quiz! Explore its properties as a sphenic, triangular, and hexagonal number. Discover its connection to perfect numbers and Erdős–Woods sequences. Challenge yourself with fun facts about this fascinating natural number!
