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