Mental Math
What is the largest prime prime factor of 2020?
Repeat for 3030, 4040, ...
2020, 3030, 4040, ... 9090, ??
What number comes next in that sequence?
Gr5-8 Mental Math Largest prime factor of 2020? Repeat for 3030,4040,...9090. What # comes next?
— David Marain (@dmarain) October 7, 2020
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