[amp_mcq option1=”24″ option2=”25″ option3=”26″ option4=”27″ correct=”option2″]<\/p>\n
The correct answer is (b) 25.<\/p>\n
A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number.<\/p>\n
The first 25 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, and 83.<\/p>\n
To find the number of prime numbers between 1 and 100, we can use a sieve. A sieve is a way of listing all the prime numbers up to a certain number. To make a sieve, we start with a list of all the natural numbers from 2 to 100. Then, we cross out all the multiples of 2, starting with 2 itself. Then, we cross out all the multiples of 3, starting with 3 itself. We continue this process, crossing out all the multiples of each prime number as we encounter them. When we are finished, the remaining numbers are all the prime numbers between 1 and 100.<\/p>\n
In this case, the sieve would look like this:<\/p>\n
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<\/p>\n
As you can see, there are 25 prime numbers between 1 and 100.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”24″ option2=”25″ option3=”26″ option4=”27″ correct=”option2″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-4491","post","type-post","status-publish","format-standard","hentry","category-mathematics","no-featured-image-padding"],"yoast_head":"\n