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