Table of Contents
- 1 What is the last digit of 2015?
- 2 How do you find the last digit?
- 3 What is a last digit?
- 4 What is the last digit of 2017?
- 5 What is the last digit of 6 2021?
- 6 What is the last digit of 2017 Power 2017?
- 7 What are the last two digits of the number 745?
- 8 What is the last digit of a 4 digit number pattern?
- 9 How do you find the last digit of a positive integer?
What is the last digit of 2015?
Notice the pattern of the last digit. It is 3, 9, 7, 1, 3, 9, 7, 1, 3 …… so on. Thus the last digit is repetitive and is a four digit long i.e. 3, 9, 7, 1….∴ Units digit of 32015 = 33 = 7 (last digit)
| Power of 3 | Last digit |
|---|---|
| 37 | 7 |
| 38 | 1 |
| 39 | 3 |
How do you find the last digit?
To find last digit of a number, we use modulo operator \%. When modulo divided by 10 returns its last digit. To finding first digit of a number is little expensive than last digit. To find first digit of a number we divide the given number by 10 until number is greater than 10.
What is a last digit?
Finding the last digit of a number is the same as finding the remainder when this number is divided by 10. In general, the last digit of a power in base n is its remainder upon division by n. So, for decimal numbers, we compute mod 10 to find the last digit, mod 100 to find the last two digits, etc.
What is the last digit of 5 2020?
Answer: the last digit of 5 to the power of 2020 is 25 because 5^6=78125 you will observe that any number will have 25 as the last two digits.
How do you solve 3 Power 2019?
Step-by-step explanation:
- Divide power by 4. 2019/4= remainder 3.
- put this remainder as number’s power.
- so unit digit will be 7. For finding unit digit we divide the power by 4. because every fifth time unit digit is repeated. 2^1 = 2. 2^2 = 4. 2^3 = 8. 2^4= 16. 2^5= 32 (unit digit is same as 1st one) 2^6= 64. 2^7 =128. 2^8=256.
What is the last digit of 2017?
Rather, the remainder is 1 (i.e. 2017 = 4*504 + 1). So 7^2017 = (7^4)^504 * 7^1 = 7. So the last digit is 7.
What is the last digit of 6 2021?
the answer is 6 Please note that N and 1 are factors of N.
What is the last digit of 2017 Power 2017?
How do you solve 2 to the 100 power?
Answer: Value of 2100 = 1.2676506002 × 1030. 2100 = 1.2676506002 × 1030.
What is the last digit of 20172017?
So 7^2017 = (7^4)^504 * 7^1 = 7. So the last digit is 7.
What are the last two digits of the number 745?
Thelast two digits of powers of 7 go in a cycle – 07, 49, 43, 01. So, the last two digits of 745 are 07.
What is the last digit of a 4 digit number pattern?
The last digit repeats in a pattern that is 4 digits long: 7,9,3,1 7,9,3,1.
How do you find the last digit of a positive integer?
Finding the last digit of a positive integer is the same as finding the remainder of that number when divided by 10 10 1 0. In general, the last digit of a power in base n n n is its remainder upon division by n n n .
How do you find the last 2 digits of a power?
In general, the last digit of a power in base n n n is its remainder upon division by n n n. For decimal numbers, we compute m o d 10 \\bmod~{10} m o d 1 0 . Finding the last 2 digits of an integer amounts to computing it mod 100 , 100, 1 0 0 , and finding the last n {n} n digits amounts to computation m o d 1 0 n \\bmod~10^{n} m o d 1 0 n .
How many times does the last digit repeat in a string?
The last digit repeats in a pattern that is 4 digits long: 7,9,3,1 7,9,3,1. 89 89 times, with two extra entries at the end. These last two entries are 9 9. 2^ {2016} 22016.