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