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