- How do you solve the mystery number problem?
- What is the mystery number?
- How does the mystery calculator work?
- What’s the most famous number?
- How does the 1089 trick work?
- How do you do magic tricks on a calculator?
- How do you play guess the number?
- Why is 6174 a magic number?
- What is the hardest 4 digit code?
- How do you guess the number game in Python?
How do you solve the mystery number problem?
Mystery number: SolutionThe digits of add up to a number where equals times the number you get when you reverse the digits of .Reverse the digits of and find the prime factors of the number you get.
Then take the sum of the squares of these prime factors and halve it.
Removing the digit 0 from the new number yields back ..
What is the mystery number?
A mystery number is basically a number which when divided into two numbers which are actually reverse of each other produces sum equal to that of the number itself.
How does the mystery calculator work?
The Trick: Ask someone to choose a number from any of the six cards. Show them each card in turn and ask them if their number appears on it. Add the numbers in the top left-hand corner of each card that contains their number. The total is their number.
What’s the most famous number?
10 Famous NumbersThe Greek letter pi represents a value of approximately 3.14159, the ratio between the circumference and diameter of a circle. … e, known as Euler’s number, is approximately 2.71828 and is another nonrepeating, nonterminating number. … 10100 is a Googol. … 0 has nothing to it. … 1 is the first counting number.More items…
How does the 1089 trick work?
1089 is widely used in magic tricks because it can be “produced” from any two three-digit numbers. … Take any three-digit number where the first and last digits differ by 1 or more. Reverse the digits, and subtract the smaller from the larger one. Add to this result the number produced by reversing its digits.
How do you do magic tricks on a calculator?
The Human Calculator, aka the 3-7-13-37 TrickHave your friend pick any 2 digit number (82, for example)Tell your friend to multiply this number by 3 and hit enter/equal (82 x 3 = 246)Then multiply that result by 7 and hit enter/equal (246 x 7 = 1,722)More items…•
How do you play guess the number?
You will need one person to choose a number, and the other to guess it.The chooser picks a secret number between 1 and 100, and then tells the guesser to start guessing.The guesser should guess one number and say it out aloud.If the guess was too high, the chooser should say ‘too high’.More items…•
Why is 6174 a magic number?
6174 is a harshad number, since it is divisible by the sum of its digits: 6174 is a 7-smooth number, i.e. none of its prime factors are greater than 7. 6174 can be written as the sum of the first three degrees of 18: 183 + 182 + 181 = 5832 + 324 + 18 = 6174.
What is the hardest 4 digit code?
8068If it guesses based on people’s natural inclination to pattern, the hardest to guess is “8068”. For some reason, when a study was done this was the least used 4-digit combination at the time.
How do you guess the number game in Python?
This script is an interactive guessing game, which will ask the user to guess a number between 1 and 99. We are using the random module with the randint function to get a random number. The script also contains a while loop, which make the script run until the user guess the right number.