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From the Project Euler Problem 8:Find the greatest product of five consecutive digits in the 1000-digit number. 7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450 checked I wrote the digits in a file, I read the file and I set an ArrayList<Character>…

From the Project Euler Problem 7:By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.What is the 10001st prime number? checked used the code for problem 3.

From the Project Euler Problem 6: The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + … + 10^2 = 385 The square of the sum of the first ten natural numbers is, (1 + 2 + … + 10)^2 = 55^2 = 3025 Hence the difference between the…

From the Project Euler Problem 5: 2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20? checked It ‘s the least common multiple of the…

From the Project Euler Problem 4: A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 * 99. Find the largest palindrome made from the product of two 3-digit numbers checked

From the Project Euler Problem 3: The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number 600851475143 ? checked I used the Sieve of Eratosthenes and an idea to know if a prime factor was the greatest without checking all the numbers until 600851475143.

I decided to start with Project Euler. Until now I have solved the first two problems, very easy: Prolem 1 Add all the natural numbers below one thousand that are multiples of 3 or 5. Problem 2 By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum…