Prime and composite numbers worksheet with a penguin theme, designed for students to practice identifying factors and classifying numbers.

A black and white worksheet titled "Prime and Composite" with a penguin illustration, featuring a table to write factors and determine if numbers are prime or composite.

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1) 8
Factors: 1, 2, 4, 8
Prime or Composite?: Composite

2) 25
Factors: 1, 5, 25
Prime or Composite?: Composite

3) 21
Factors: 1, 3, 7, 21
Prime or Composite?: Composite

4) 30
Factors: 1, 2, 3, 5, 6, 10, 15, 30
Prime or Composite?: Composite

5) 5
Factors: 1, 5
Prime or Composite?: Prime

6) 48
Factors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Prime or Composite?: Composite

7) 19
Factors: 1, 19
Prime or Composite?: Prime

8) 12
Factors: 1, 2, 3, 4, 6, 12
Prime or Composite?: Composite

Parent Tip: Review the logic above to help your child master the concept of prime and composite numbers worksheet grade 4.

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