Question

Простые числа,разность которых равна 2,называют числами-близнецами.сколько пар чисел-близнецов в ряду чисел? а)от 1 до 100 б)от 100 до 200 проверьте есть ли числа-близнецы в промежутке от 900 до 1000..... и как это находится??

Answer 1

1)от 1 до 100 :5-3;7-5;13-11;19-17;31-29;43-41;61-59;73-71
Всего 8
2)от100 до 200:103-101;139-137;151-149;181-179;193-191;199-197
Всего 6
От 900 до 1000 близнецов нет

Answer 2

Simple Numbers and Twin Primes

Simple Numbers: Simple numbers, also known as prime numbers, are numbers greater than 1 that have no positive divisors other than 1 and themselves. For example, 2, 3, 5, 7, 11, and 13 are simple numbers.

Twin Primes: Twin primes are pairs of simple numbers that have a difference of 2 between them. For example, (3, 5), (11, 13), and (17, 19) are twin primes.

Number of Twin Prime Pairs

a) From 1 to 100: The number of twin prime pairs from 1 to 100 can be determined by identifying pairs of simple numbers with a difference of 2 between them.

b) From 100 to 200: Similarly, the number of twin prime pairs from 100 to 200 can be found by identifying pairs of simple numbers with a difference of 2 between them.

Twin Primes in the Range from 900 to 1000

To check for twin prime pairs in the range from 900 to 1000, we can look for pairs of simple numbers with a difference of 2 between them within this range.

Finding Twin Prime Pairs

To find twin prime pairs within a given range, we can use various mathematical techniques and algorithms, such as the Sieve of Eratosthenes or other methods for generating prime numbers. These methods can help identify simple numbers and their differences to determine twin prime pairs.

Would you like to know more about the specific techniques for finding twin prime pairs or any other related information?