I can list them in ascending order.
4 6 8 9 10 12 14 15 16 18 20 21 22 24 25 26 27 28 30 32 33 34 35 36 38 39 40 42 44 45 46 48 49 50 51 52 54 55 56 57 58 60 62 63 64 65 66 68 69 70 72 74 75 76 77 78 80 81 82 84 85 86 87 88 90 91 92 93 94 95 96 98 99 100
You can pair them up however you'd like.
All of the composite numbers less than 100 have factor pairs.
That's an infinite list.
Look for a table of prime numbers. All the odd numbers that are NOT on this list are composite 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.)
There are infinitely many of them so it is not possible to list them.
All of the composite numbers less than 100 have factor pairs.
That's an infinite list.
Look for a table of prime numbers. All the odd numbers that are NOT on this list are composite 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.)
There are infinitely many of them so it is not possible to list them.
A single number cannot be relatively prime. Any pair of numbers between 50 and 100 of which one is a prime will be relatively prime. There are 728 pairs of numbers that are relatively prime and I have neither the time nor patience to list them all!
There are no three composite numbers whose product is 100. There is a huge number of composite numbers whose sum is 100 - far more than I am prepared to list. 20 + 30 + 50 is one example.
74% is the percentage of composite numbers from 1 to 100?
Out of those 100 numbers, 21 of them are prime numbers, so the remaining (100 - 21) = 79 are composite.
101
100 + 099 + 198 + 297 + 3...52 + 4851 + 49This list has 50 members. If you don't like that zero in (100+0), then there are only 49 pairs.
99 is the largest composite number before 100.