343 is not divisible by 17. The prime factorization of 343 is 7³ while 17 is a prime number. Since 17 is not a factor of 343, the two numbers are not divisible. Class 6 Mathematics Ganita Prakash Prime Time Class 6 ...
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Yes. Other primes satisfying the condition are: 5 → 2 × 5 + 1 = 11 (prime). 11 → 2 × 11 + 1 = 23 (prime). 13 → 2 × 13 + 1 = 27 (prime). class 6 Mathematics Textbook ...
False. A product of two or more prime numbers is composite, not prime. A prime number has exactly two divisors, but the product of primes has additional divisors, including the prime factors themselves. Class 6 Mathematics Chapter 5 Prime Time question ...