image

    Have a query? Ask a Tutor!!

    Access to best educators and exclusive paper discussions

    Offsite CampusTurito Championship

    Can’t find what you’re looking for?

    Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

    • Homework- One to One Solutions
    • Understand concepts to solve better
    • Get your doubts solved instantly
    Mathematics
    Grade-4-
    Easy

    Question

    Select the prime number.

    1. 18    
    2. 21    
    3. 23    
    4. 24    

    hintHint:

    Verifying the given numbers are prime or not.
    Prime number :  prime number  is  a number which is only divisible by 1 and itself.

    The correct answer is: 23

      Step 1:
      18 has factors 1, 2, 3, 6, 9 and 18. It is composite.
      21 has factors 1, 3, 7, and 21. It is composite.
      24 has factors 1, 2, 3, 4, 6, 8, 12 and 24. It is composite.
      Step 2:
      Only 23 among the given numbers is a prime number as it is only divisible by 1 and itself.

      Related Questions to study

      card img

      With Turito Academy.

      card img

      With Turito Foundation.

      card img

      Get an Expert Advice From Turito.

      Turito Academy

      card img

      With Turito Academy.

      Test Prep

      card img

      With Turito Foundation.