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Question 1
Which shows the prime factorization of 90?
A. 2×2×3×5B. 2×3×5×5
C. 3×3×3×5D. 2×3×3×5
Question 2
The prime factorization of 125 is _______.
A. 3 × 5 × 5 × 5B. 5 × 5 × 5
C. 3 × 2 × 5 × 5D. 3 × 3 × 7 × 5
Question 3
Which is a prime number?
A. 91B. 64
C. 50D. 79
Question 4
Which is NOT a prime number?
A. 443B. 149
C. 49D. 19
Question 5
Which is a composite number?
A. 29B. 121
C. 53D. 101
Question 6
Which shows the prime factorization of 147?
A. 3×7×7B. 3×3×7
C. 3×5×6D. 3×5×7
Question 7
Find the prime factorization of 420.
A. 2×2×2×5×7B. 2×5×5×5×7
C. 2×2×3×3×7D. 2×2×3×5×7
Question 8
Find the prime factorization of 1029.
A. 2 × 3 × 3 × 7B. 3 × 7 × 7× 7
C. 2 × 2 × 5 × 7 × 13 D. 2 × 2 × 3 × 7 × 11
Question 9
Which shows the prime factorization of 1,242?
A. 2 ×32×23B. 2 ×33×21
C. 2 ×33×23D. 2 ×53×11
Question 10
Which shows the prime factorization of 225?
A. 3 × 3 × 3 × 5 × 5B. 2 × 3 × 5 × 6
C. 3 × 3 × 5 × 5D. 9 × 5 × 5
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