25 prime numbers in that range.
There is only one prime number which is even - that is 2 - and it also happens to be less than 100. All other prime numbers are odd.
269
Oh, dude, you're hitting me with some math vibes here. So, like, the sum of all prime numbers less than 100 would be 1060. Yeah, that's right, 1060. So, like, if you were wondering how much prime numbers under 100 add up to, there you go.
Prime and relatively prime numbers all have a GCF of 1.
Euclid (c. 300 BC) was one of the first to prove that there are infinitely many prime numbers. His proof was essentially to assume that there were a finite number of prime numbers, and arrive at a contradiction. Thus, there must be infinitely many prime numbers. Specifically, he supposed that if there were a finite number of prime numbers, then if one were to multiply all those prime numbers together and add 1, it would result in a number that was not divisible by any of the (finite number of) prime numbers, thus would itself be a prime number larger than the largest prime number in the assumed list - a contradiction.
The prime factors of 100 are: 2,5
The sum of the all prime numbers from 1 to 100 is 1,161
The only even prime number (not only from 1 to 100, but in general) is 2. All other even numbers are multiples of 2, and therefore, by definition, not prime numbers.
Search the Internet for a list of prime numbers - the Wikipedia article on prime numbers might list a few. All numbers between 2-100 that are not prime, are composite. (The number is not counted as prime, nor as composite.)
The prime numbers from 100 to 110 are 101, 103, 107, and 109.
There are infinitely many prime numbers, so it is impossible to list them all. The first few after 100 are 101, 103, 107, 109, 113, ...
The prime numbers from 75 through 100 are: 79, 83, 89, 97
All of them except 83, 89 and 97 which are prime numbers
2 and 3 are the only consecutive numbers that are prime.
2 and 5 are the prime factors of 100.
There are 25 prime numbers between 1 and 100, all of them can be factors.
All of them. 100%. All prime numbers are odd numbers. (The exception being the number 2)