How many of the following numbers are prime? 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
- 4
- 3
- 2
- None of these
Explanation
Let's identify the prime numbers from the list:
Given numbers:
7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
A prime number has only two divisors: 1 and itself.
Prime numbers are:
7
11
13
17
Total prime numbers = 4
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- 20
- 19
- 18
- None of these
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- 220
- 240
- 260
- None of these
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