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