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Question:
How many prime numbers are there between 25 and 35, inclusive?
A
2
explanation
Prime numbers are not divisible by anything other than themselves and 1. The only prime numbers in this set are 29 and 31. 25, 30, and 35 can be excluded because they are divisible by 5. 26, 28, 30, 32, and 34 are divisible by 2. 27, 30, and 33 are divisible by 3.
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