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 {19, 9, 2, 7, 11, 17} → ______
- Prime numbers in {27, 3, 17, 2, 15, 7} → ______
- Prime numbers in {27, 21, 13, 11, 9, 15} → ______
- Prime numbers in {21, 19, 9, 23, 17, 7} → ______
- Prime numbers in {21, 23, 25, 5, 17, 7} → ______
- Prime numbers in {13, 23, 25, 7, 8, 5} → ______
- Prime numbers in {17, 12, 2, 27, 7, 5} → ______
- Prime numbers in {15, 11, 29, 13, 2, 21} → ______
- Prime numbers in {27, 15, 7, 8, 5, 17} → ______
- Prime numbers in {17, 2, 21, 3, 13, 27} → ______
- Prime numbers in {23, 12, 8, 17, 27, 21} → ______
- Prime numbers in {15, 7, 23, 13, 29, 2} → ______
- Prime numbers in {7, 9, 19, 25, 27, 13} → ______
- Prime numbers in {17, 8, 21, 5, 27, 2} → ______
- Prime numbers in {27, 2, 19, 5, 11, 7} → ______
- Prime numbers in {21, 12, 11, 23, 7, 13} → ______
- Prime numbers in {25, 21, 5, 9, 13, 15} → ______
- Prime numbers in {13, 15, 25, 3, 11, 19} → ______
- Prime numbers in {17, 21, 19, 9, 12, 11} → ______
- Prime numbers in {3, 21, 9, 5, 19, 23} → ______