Countdown Challenge: Prime & Composite Numbers: Sieve of Eratosthenes

In this prime and composite worksheet, learners use the Sieve of Eratosthenes to identify prime numbers. They identify given factors in a list. This one-page worksheet contains a list of 100 numbers. Following a given process, students identify 25 prime numbers.

7th - 8th Math 7 Views 24 Downloads
Resource Details

1 more...
Resource Types
1 more...

What Members Say

Jessica H.
Lesson Planet has been a lifesaver for me, especially when I am in a time crunch and need a resource quickly. While I consider myself a very creative person, sometimes I need to utilize the great ideas of fellow teachers to get my creative juices flowing. Lesson Planet has been pivotal in this regard.
Jessica H., Teacher
Bethlehem, GA