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