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