23 and 29 are the prime numbers between 20 and 30. No even number is a prime number (except 2). Hence, 20, 22, 24, 26, 28 and 30 are not prime…

The prime numbers 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101. You could have got rid of all the even numbers first, then every number that you could divide by 3.

Step-by-step explanation: Prime numbers between 20 and 35 are 23,29 and 31 and their frequency of occurrence be 1, 1 and 1 respectively.

Correct answer: (b) The prime numbers between 21 and 30 inclusive are 23 and 29 – two prime numbers out of ten integers.

22,24,26&28 are the even numbers between 20&30.

The prime numbers between 30 and 40 are 31 and 37. All the other numbers (30, 32, 33, 34, 35, 36, 38, 39, and 40) are not prime numbers.

31 and 37
The prime numbers between 30 and 40 are: 31 and 37. To find this answer, you start with listing the factors of all numbers between 30 and 40.

/[20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40/]. So, these are the numbers between /[20/] and /[40/]. /[23,29,31,37/] are the four numbers that do not have factors other than 1 and itself. Since these numbers /[23,29,31,37/]are divisible by themselves and 1, they are prime numbers.

There is only 2 prime number between 20 and 30 that is..23 and 29.. =26 ans.

The odd numbers from 1 to 100 are: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99.

(Excluding 20 and 50,there are 14 even numbers.) The numbers which are divisible by 2 are popularly known as the even numbers. Now,we just need to find the numbers between the 20 and 50,which are divisible by 2. The numbers will be 20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50.

The 30 prime numbers are. 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101. 103. 107, 109, 113, 117 and their sum is 230.

The prime numbers are the natural numbers greater than one that are not products of two smaller natural numbers. A prime number (or a prime) is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number.

The number 39 is not a prime number because it is possible to factorize it. In other words, 39 can be divided by 1, by itself and at least by 3 and 13.

the first ten prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. NOTE: 1 is NOT a prime number. By definition 1 is not a prime number since a prime number is divisible by two numbers; one and itself.