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