Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {21, 8, 17, 2, 12, 25} → ______
- Prime numbers in {5, 3, 11, 23, 17, 25} → ______
- Prime numbers in {11, 27, 15, 2, 13, 29} → ______
- Prime numbers in {29, 27, 12, 15, 13, 17} → ______
- Prime numbers in {7, 11, 27, 23, 21, 17} → ______
- Prime numbers in {29, 2, 3, 23, 21, 11} → ______
- Prime numbers in {13, 5, 17, 3, 15, 11} → ______
- Prime numbers in {23, 11, 9, 13, 12, 15} → ______
- Prime numbers in {7, 11, 13, 15, 12, 3} → ______
- Prime numbers in {27, 3, 11, 13, 7, 19} → ______
- Prime numbers in {19, 8, 2, 12, 15, 3} → ______
- Prime numbers in {7, 29, 9, 15, 19, 21} → ______
- Prime numbers in {5, 12, 11, 7, 2, 17} → ______
- Prime numbers in {17, 25, 21, 3, 27, 15} → ______
- Prime numbers in {23, 11, 8, 13, 3, 9} → ______
- Prime numbers in {21, 25, 29, 27, 7, 11} → ______
- Prime numbers in {29, 19, 23, 5, 17, 27} → ______
- Prime numbers in {23, 17, 13, 9, 12, 25} → ______
- Prime numbers in {9, 7, 13, 8, 5, 19} → ______
- Prime numbers in {19, 11, 7, 8, 3, 29} → ______