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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.)

Q: How many composite numbers are less than 100?

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74

Five.

There are 18.

There are 15 prime numbers and 34 composite numbers because 1 is not considered to be a prime or composite number

49 of them.

Related questions

There are 15 composite numbers greater than 50 but less than 70

There are 18 that are less than 30.

1260 of them.

74

3 composite numbers, 21, 22, and 24, are greater than 20 but less than 25.

24

Five.

There are 18.

The sum of the composite numbers that are less than 8 is: 4+6 = 10

composite numbers are less than 12: 4, 6, 8, 9, 10

There are 15 prime numbers and 34 composite numbers because 1 is not considered to be a prime or composite number

Of the 1499 numbers less than 1500, number 1 is neither prime nor composite, 239 are primes, and the remaining 1259 are composites.