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