Every birthday I consider whether I'm in the "prime of my life" ... like when I was 13 or 17 years old. Will this new year be a prime year? I hope so.
Don't use Google or Siri or whatever. Just see if you can figure this out and explain your reasoning.
The activity: PrimeYear2021.pdf
CCSS: 4.OA.B.4, 5.NF.B.5.a, 6.NS.B
For members we have an editable Word docx and solutions with hints.