IKMC 2027 - Grades 7-8 - Self-study SET 14 - Thematic Batch 3 Question 7

IKMC · IKMC 2027 - Grades 7-8 - Self-study SET 14 - Thematic Batch 3

Question 7

What is the units digit of $2^{36}-1$?

1. 1
2. 3
3. 5
4. 7
5. 9