Question

What is the last digit of 2 raised by 105​

Answer 1

2

Step-by-step explanation:

2 has cyclicity of 4

dividing 105 by 4 we get remainder = 1

so last digit of 2^105 will be last digit of 2^1 that is 2

Answer 2

1. the mathematically answer is
2. 2÷105
3. answer us 2.1