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