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Questions and Answers
What is the characteristic of a prime number?
Which of the following is the smallest composite number?
What is true about every composite number?
Which of the following is a property of composite numbers?
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What is the common characteristic of 2, 3, 5, 7, 11, and 13?
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What is true about the factors of composite numbers?
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Study Notes
Prime and Composite Numbers
Prime Numbers
Prime numbers are numbers with exactly two factors: 1 and the number itself. These numbers are fundamental in mathematics and have various applications, including in cryptography for secure communication. Some examples of prime numbers include 2, 3, 5, 7, 11, and 13. Numbers like 2, 3, 5, 7, 11, 13, and 17 are all considered prime numbers because they have exactly two factors.
Composite Numbers
Composite numbers, on the other hand, have more than two factors. A composite number has factors in addition to 1 and itself. The smallest composite number is 4, as it has factors 1, 2, and 4. Examples of composite numbers include 6, 8, 9, 10, 12, 14, 15, 16, and so on.
Properties of Composite Numbers
Composite numbers have properties such as:
- Every composite number has more than two factors
- The factors evenly divide composite numbers
- Composite numbers are their own factors too
- 4 is the smallest composite number
- Each composite number has at least two prime numbers as its factors
- A composite number is divisible by other composite numbers too
List of Prime and Composite Numbers
Here are the prime and composite numbers from 1 to 100:
Prime Numbers
- 2
- 3
- 5
- 7
- 11
- 13
- 17
- 19
- 23
- 29
- 31
- 37
- 41
- 43
- 47
- 53
- 59
- 61
- 67
- 71
- 73
- 79
- 83
- 89
- 97
Composite Numbers
- 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100
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Description
Test your knowledge on prime and composite numbers. Learn about the properties and differences between prime and composite numbers, as well as identifying prime and composite numbers up to 100.
