Mathematics, 13.07.2019 14:30, Masonb1849

Jane's favorite number is very special. the prime factors of this number don't repeat and are all the prime numbers less than 10. what is her favorite number?

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Mathematics, 05.07.2019 07:00, kimberlyvazquez1121

Two numbers are called relatively prime if their greatest common divisor is $1$. grogg's favorite number is the product of the integers from $1$ to $10$. what is the smallest integer greater than $500$ that is relatively prime to grogg's favorite number?

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Computers and Technology, 17.09.2019 20:20, IsabellaGracie

Python programming: 2.8 exampledef factors(n): factorlist = []k = 2while k< =nwhile n%k==0: facorlist.append(k)n //= kk += 1return factorlistthe program in example 2.8 is not a very efficient way of calculating prime numbers: it checks each number to see if it is divisible by any number less than it. we can develop a much faster program for prime numbers by making use of the following observations: a) a number n is prime if it has no prime factors less than n. hence we only need to check if it is divisible by other primes.b) if a number n is non-prime, having a factor r, then n = rs, where s is also a factor. if r ≥ √n then n = rs ≥ √ns, which implies that s ≤ √n. in other words, any non- prime must have factors, and hence also prime factors, less than or equal to √n. thus to determine if a number is prime we have to check its prime factors only up to and including √n—if there are none then the number is prime.c) if we find even a single prime factor less than √n then we know that the number is non- prime, and hence there is no need to check any further—we can abandon this number and move on to something else.write a python program that finds all the primes up to ten thousand. create a list to store the primes, which starts out with just the one prime number 2 in it. then for each number n from 3 to 10 000 check whether the number is divisible by any of the primes in the list up to and including √n. as soon as you find a single prime factor you can stop checking the rest of them—you know n is not a prime. if you find no prime factors √n or less then n is prime and you should add it to the list. you can print out the list all in one go at the end of the program, or you can print out the individual numbers as you find them.

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Mathematics, 06.10.2019 01:00, FailingstudentXD

Glenn’s favorite number is very special because it reminds him of the day his daughter, sarah, was born. the factors of this number do not repeat, and all the prime numbers are less than 12. what is glenn’s number? when was sarah born?

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Computers and Technology, 29.10.2019 23:31, treviam963

Sheldon cooper’s (of big bang theory) favorite number is 73. one of his reasons is that 73 is a prime number and there are 21 prime numbers between 1 and 73. a prime number is a number greater than 1 that is not divisible by another number (the only even number that is a prime number is 2; all other prime numbers are odd). write the python code to calculate and print the prime numbers between 1 and 73 (but not including 73). your program will also need to count the prime numbers to see if this is really the 21th prime number.

Answers: 2

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