📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q1

If $a, b, c, d$ and $e$ are distinct prime numbers and the sum of these five numbers is odd, then $\mathrm{a}+\mathrm{b}+\mathrm{c}+\mathrm{d}$ is:

🎯 SSC Delhi Police Constable 23/11/2023 (Shift- 01)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q2

Let a and b be two numbers such that a and $(\mathrm{b}-\mathrm{a})$ are co-primes and b and ( $\mathrm{b}+\mathrm{a}$ ) are co-primes, respectively. Which of the followings is true?

🎯 SSC Delhi Police Constable 16/11/2023 (Shift- 03)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q3

Which of the following is a pair of co-primes?

🎯 SSC Delhi Police Constable 14/11/2023 (Shift- 01)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q4

Which of the following is a prime number?

🎯 SSC Delhi Police Constable 13/10/2022 (Shift- 01)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q5

If $\left(k^{2}+3\right)$ and $\left(k^{3}+5\right)$ are prime numbers then what will be the value of $k$ ?

🎯 SSC Delhi Police Constable 14/11/2023 (Shift- 02)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q6

What is the smallest prime number of 5 digits?

🎯 SSC Delhi Police Constable 02/12/2023 (Shift- 01)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q7

Three numbers which are co-prime to each other are such that the product of the first two is 391 and that of the last two is 943 . Find the middle number.

🎯 SSC Delhi Police Constable 16/11/2023 (Shift- O1)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q8

The sum of three primes is 72 . If one of the numbers is 24 more than the other number, then which one is the number?

🎯 SSC Delhi Police Constable 17/11/2023 (Shift-01)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q9

Let, N be a four-digit positive integer such that the unit digit of N is prime and the product of all the digits of N is also prime. The number of possible values of N is:

🎯 SSC Delhi Police Constable 28/11/2023 (Shift-01)

📘 Factors Count Type and Properties📚 Total Number of Factors

Q10

Each prime number has $\_\_\_\_$ factor/factors.

🎯 SSC Delhi Police Constable 20/10/2022 (shirt - 01)

📘 Factors Count Type and Properties📚 Total Number of Factors

Q11

Which of the following numbers is greater than the sum of all the prime factors of 1560?

🎯 SSC Delhi Police Constable 29/11/2023 (Shift- 03)

Mathematics - MOST IMPORTANT Delhi Police Previous Year Questions