Real Numbers · Class 10 · CBSE Mathematics
What is the HCF of the smallest prime number and the smallest composite number?
Practice question from Real Numbers (Class 10 · CBSE Mathematics), with the correct answer and a step-by-step solution.
easy · MCQ · Q-965656
What is the HCF of the smallest prime number and the smallest composite number?
- A.1
- B.2Correct answer
- C.4
- D.8
Solution
The smallest prime number is 2, and the smallest composite number is 4. Their prime factorizations are and . The HCF is the product of the smallest powers of each common prime factor, which is .
More from Real Numbers
- Let a and b be two positive integers such that a = x^3 y^2 and b = x y^3, where x and y are prime numbers. What is text{HCF}(a, b)?
- The decimal expansion of the rational number frac{43}{2^4 times 5^3} will terminate after how many places of decimals?
- If two positive integers p and q can be expressed as p = ab^2 and q = a^3b, where a, b are prime numbers, then what is the LCM(p, q)?
- Given that text{HCF}(306, 657) = 9, find text{LCM}(306, 657).
Practise more Mathematics
Sign up free for adaptive practice on this chapter, with instant feedback and hints on every question.
Start practising freeFree to start · No credit card needed