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Prime numbers
Prime numbers 256
Description
Exercise Name: Prime numbers
Math Missions: 4th grade (U.S.) Math Mission, Pre-algebra Math Mission, Mathematics I Math Mission
Types of Problems: 1

The Prime numbers exercises appears under the 4th grade (U.S.) Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise practices recognition of prime numbers.

Types of Problems

There is one type of problem in this exercise:

  1. Find the prime number: This problem lists five numbers and asks the user to select the one that is a prime number.
    Prinum

    Find the prime number

Strategies

Knowledge of finding prime numbers are essential to ensure success in this exercise.

  1. This exercise is easy to get accuracy badges and speed badges because standard divisibility rules can be used to quickly discover which numbers are composite.
  2. Remember to use factor trees if it's easier for you to visualize.

Real-life Applications

  1. Problems like this will appear on standardized tests like the SATs and ACTs.

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