The sum of all prime numbers between 60 and 75 is 272
All the prime numbers between 50 and 75 are 53, 59, 61, 67, 71 and 73.
100
The two prime numbers whose sum is 75 are 37 and 38. 37 is a prime number because it has only two factors: 1 and 37. 38 is not a prime number because it has more than two factors (1, 2, 19, and 38).
The prime factors of 75 are 3,5,5 as 3*5*5=75. This can be determined by testing 75 for divisibility by prime numbers starting from 2. Using the prime factorization you can determine that all the factor pairs are (3*5)*5=15*5 and 3*(5*5)=3*25
The prime numbers from 75 through 100 are: 79, 83, 89, 97
14
2,3,5,7,11,13,17,19,23,29,31,37,39,41,43,47,51,53,57,59,61,67,71,73
75 composite numbers are there till 100. 100-25=75. Composite numbers are numbers greater than 1 but not prime numbers.
53,59,61,67,69,71,73.
102
All the prime numbers between 50 and 75 are: 53, 59, 61, 67, 71 and 73.
79, 83, 89, 97
Each of the 25 prime numbers from 1 to 100 has exactly two factors, 1 and the number itself. The other 75 numbers from 1 to 100 are not prime numbers because none of them have exactly two factors.
Including 1 and 100: 75 (73 if the range does not include 1 and 100.)
79, 83, 89, and 97
79 83 89 97