🔬 Grade 4 📖 Number Theory 🎯 Composite Numbers

Miss Brenda’s Grade 4 Math Class 🌟

70 practice questions included

Free lessons: 1 of 5

🧠 Practice Questions 70 total

Which number is a composite number?

Explanation: 4 has more than two factors: 1, 2, 4.

A composite number has:

Explanation: More than two different factors.

Is 9 a composite number?

Explanation: 9 = 1 × 9 and 3 × 3 (more than two factors).

Which of these is composite?

Explanation: 15 = 3 × 5.

The smallest composite number is:

Explanation: 4 is the smallest composite number.

Which number is NOT composite?

Explanation: 29 is prime.

How many factors does 12 have?

Explanation: 12 has 6 factors: 1,2,3,4,6,12.

A number greater than 1 that is not prime is called:

Explanation: It is a composite number.

Is 25 a composite number?

Explanation: 25 = 1, 5, 25 (three factors).

Which is a composite number?

Explanation: 21 = 3 × 7.

🏆

🔒

60 more questions are waiting for you. Unlock all Grade 1–6 lessons and questions with InukMath Premium.