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