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