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