Question: Which expression shows a prime factorization?
A) 2 • 9 • 11
B) 2.5 • 7 • 3
C) 1 • 11 • 13
D) 2 • 2 • 2 • 3 • 11
Correct answer: D
Grade: 6 | Topic: Number System | Difficulty: Medium | Standard: 6.NS.B.4