1.   What are the prime factors of 120?
    A. 2, 2, 2, 3, 5 B. 2, 2, 30
    C. 2, 60 D. 2, 3, 5
    Hint

  2.   Write the prime factorization of 1500.
    A. 22 × 3 × 53 B. 22 × 3 × 52
    C. 2 × 3 × 5 D. 22 × 3 × 52 × 102
    Hint

  3.   Which of the following numbers is prime?
    A. 43 B. 63
    C. 57 D. 75
    Hint

  4.   Write the prime factorization of 810.
    A. 2 ×3 × 5 B. 2 × 34 × 5
    C. 32 × 4 × 5 D. 2 × 5 × 92
    Hint

  5.   Factor 8x2.
    A. 2 · 2 · 2 · x B. 2 · 2 · 2 · x · x
    C. 8 · x D. 2 · 4 · x · x
    Hint



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