Problem database last updated: June 20, 2025
2 problems · 0 Easy, 0 Medium, 2 Hard · Ranked #421 of 458
0 Easy
0% · avg 23%
0 Medium
0% · avg 59%
2 Hard
100% · avg 18%
Based on 2 reported problems, Avalara interviews are significantly harder than average - 100% Hard vs 18% across all companies.
Compared to the industry average, Avalara puts unusual emphasis on math (100% of problems, 7.9x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are math (100%), number-theory (50%), string (50%), recursion (50%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Abbreviating the Product of a Range You are given two positive integers left and right with left <= right. Calculate the product of all integers in the inclusive range [left, right]. | Hard | Very Likely | mathnumber-theory | Solve |
Integer to English Words Convert a non-negative integer num to its English words representation. | Hard | Likely | mathstringrecursion | Solve |
Abbreviating the Product of a Range
SolveYou are given two positive integers left and right with left <= right. Calculate the product of all integers in the inclusive range [left, right].
Integer to English Words
SolveConvert a non-negative integer num to its English words representation.
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Avalara interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Avalara interviews focus heavily on math, number-theory, string problems. If you're short on time, these are the categories to prioritize. The problems on this page are sorted by frequency, so start from the top and work your way down.
Beyond solving problems, practice explaining your approach. Avalara interviewers care about your thought process - how you break down a problem, consider edge cases, and evaluate tradeoffs between solutions. A clean O(n) solution you can explain clearly beats an O(log n) solution you can't articulate.
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Avalara has been reported to ask 2 distinct coding problems. The most common topics are math, number-theory, string. 0 are Easy difficulty, 0 are Medium, and 2 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 2 reported problems, Avalara interviews are significantly harder than average - 100% Hard vs 18% across all companies. 0% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
Start with the highest-frequency problems listed on this page. Focus on the core topics: math, number-theory, string. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
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