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Factors, multiples, prime and composite numbers

Math • Counting & Place Value • Knowledge-Based • 5 questions

Factors, multiples, prime and composite numbers Knowledge-Based Download PDF

Math · Number Sense & Operations · Math · Counting & Place Value

5 Math practice questions on Factors, multiples, prime and composite numbers. Questions that assess core concepts and understanding.

Questions

  1. 1.

    What is the sum of the distinct prime factors of 210?

    • A) 12
    • B) 15
    • C) 17
    • D) 21
  2. 2.

    What is the positive difference between the greatest two-digit prime number and the least two-digit composite number?

    • A) 85
    • B) 86
    • C) 89
    • D) 87
  3. 3.

    How many positive factors does the number 120 have?

    • A) 8
    • B) 10
    • C) 12
    • D) 16
  4. 4.

    What is the sum of all prime numbers between 20 and 40?

    • A) 120
    • B) 147
    • C) 159
    • D) 83
  5. 5.

    Which of the following numbers has exactly three distinct positive factors?

    • A) 49
    • B) 18
    • C) 27
    • D) 37