Free Test Prime Factorization – General...

Q1: What is the prime factorization of 60?

A. 2 × 2 × 3 × 5 B. 2 × 3 × 5 × 5 C. 2 × 2 × 5 × 5 D. 3 × 3 × 5 × 5

Q2: Prime factorization of 84 is?

A. 2 × 2 × 3 × 7 B. 2 × 3 × 3 × 7 C. 2 × 2 × 2 × 7 D. 3 × 3 × 7 × 7

Q3: What are the prime factors of 45?

A. 3 × 3 × 5 B. 5 × 5 × 3 C. 2 × 3 × 5 D. 3 × 5 × 5

Q4: Prime factorization of 100 is?

A. 2 × 2 × 5 × 5 B. 2 × 5 × 10 C. 2 × 2 × 10 D. 5 × 5 × 5 × 5

Q5: Which of the following is a correct prime factorization of 72?

A. 2 × 2 × 2 × 3 × 3 B. 3 × 3 × 3 × 2 C. 2 × 2 × 3 × 3 × 3 D. 2 × 2 × 2 × 2 × 3

Q6: Which of the following is the prime factorization of 90?

A. 2 × 3 × 3 × 5 B. 3 × 3 × 5 × 5 C. 2 × 5 × 9 D. 2 × 2 × 5 × 3

Q7: What are the prime factors of 49?

A. 7 × 7 B. 3 × 7 C. 2 × 7 × 7 D. 5 × 7

Q8: Prime factorization of 128 is?

A. 2 × 2 × 2 × 2 × 2 × 2 × 2 B. 2 × 2 × 2 × 2 × 2 × 2 C. 2 × 4 × 4 × 4 D. 4 × 4 × 8

Q9: What is the smallest prime factor of 91?

A. 7 B. 13 C. 3 D. 5

Q10: Which of the following numbers is not a prime factor of 105?

A. 4 B. 3 C. 5 D. 7

Q11: Which number has the prime factors 2, 3, and 7?

A. 42 B. 28 C. 21 D. 56

Q12: Prime factorization of 36 is?

A. 2 × 2 × 3 × 3 B. 2 × 3 × 6 C. 2 × 2 × 6 D. 3 × 3 × 4

Q13: What is the prime factorization of 18?

A. 2 × 3 × 3 B. 3 × 3 × 2 × 1 C. 6 × 3 D. 3 × 3 × 3

Q14: Which of the following is a prime factor of 81?

A. 3 B. 2 C. 4 D. 6

Q15: Which number has prime factors 5 and 11?

A. 55 B. 50 C. 45 D. 66

Q16: Prime factorization of 200 is?

A. 2 × 2 × 2 × 5 × 5 B. 2 × 5 × 10 × 2 C. 4 × 5 × 10 D. 2 × 2 × 10 × 5

Q17: Which of the following numbers is a product of only two distinct primes?

A. 22 B. 18 C. 36 D. 100

Q18: What is the prime factorization of 64?

A. 2 × 2 × 2 × 2 × 2 × 2 B. 2 × 2 × 4 × 4 C. 2 × 4 × 8 D. 2 × 2 × 2 × 8

Q19: What is the product of prime factors of 70?

A. 2 × 5 × 7 B. 2 × 7 × 9 C. 2 × 2 × 5 D. 2 × 2 × 7

Q20: Which of these numbers has only one distinct prime factor?

A. 49 B. 35 C. 18 D. 21

Quiz for Prime Factorization