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