benchmarks.wiki / Public workspace

Omni-MATH / There is one odd integer N between 400 and 600 that is divisible by both 5 and 11. What is the sum of the digits of N? · Discussion

Discussing There is one odd integer N between 400 and 600 that is divisible by both 5 and 11. What is the sum of the digits of N? · Omni-MATH

Posts

Chronological order within this page.

Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.