How many integers between 110 and 120 are prime numbers?
Solution
Correct Answer: Option B
*110 এবং 120 এর মধ্যে integer গুলি: 111, 112, 113, 114, 115, 116, 117, 118, 119
এদের মধ্যে:
-111 = 3 × 37 (prime নয়)
-112 = 2^4 × 7 (prime নয়)
-113 - prime
-114 = 2 × 3 × 19 (prime নয়)
-115 = 5 × 23 (prime নয়)
-116 = 2^2 × 29 (prime নয়)
-117 = 3^2 × 13 (prime নয়)
-118 = 2 × 59 (prime নয়)
-119 = 7 × 17 (prime নয়)
*সুতরাং, এই range-এ মাত্র একটি prime number আছে: 113।
*সঠিক উত্তর: (B) 1
এদের মধ্যে:
-111 = 3 × 37 (prime নয়)
-112 = 2^4 × 7 (prime নয়)
-113 - prime
-114 = 2 × 3 × 19 (prime নয়)
-115 = 5 × 23 (prime নয়)
-116 = 2^2 × 29 (prime নয়)
-117 = 3^2 × 13 (prime নয়)
-118 = 2 × 59 (prime নয়)
-119 = 7 × 17 (prime নয়)
*সুতরাং, এই range-এ মাত্র একটি prime number আছে: 113।
*সঠিক উত্তর: (B) 1
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