Question

How many prime numbers are there between 1 to 100 .

a) 12

b) 15

c) 25

d) 20 ​

Answer 1

Answer:

b]25

Step-by-step explanation:

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

Answer 2

How many prime numbers are there between 1 to 100?

Option c) 25.

• Prime number: It has only two factors which are 1 and the number itself.
• The number which has more than 2 factors are composite numbers. Examples are 4,8,9,etc.
• Prime numbers are whole numbers.
• 25 prime numbers starting from 1 and end at 100. Those are:

• 2: Its factors are 1 and 2.
• 3:It also has two factors 1 and 3.
• 5:Factors are 1 and 5.
• 7:Factors are 1 and 7.
• 11:Factors are 1 and 11.
• In this manner, the 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.
• 1 is only divided by only one number that is 1 itself so it is not considered as a prime number.

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