There are 70 composite numbers between 1 and 100 (inclusive). They are 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, 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, 88, 90, 92, 94, 95, 96, 98, 99, and 100.
The number 1 is neither prime nor composite, because prime numbers have exactly two whole factors, and composite numbers have more than two whole factors. There is only one whole factor for 1, and that is 1.
The other 29 numbers are prime: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 49, 53, 59, 61, 67, 71, 74, 79, 83, 87, 89, 91, 93, and 97.
The bottom branch of a factor tree consists entirely of prime numbers.
Yes.
prime
It is composite.
composite
It is composite.
composite
1100
It is a composite number.
8924 is the number that comes 1100 numbers after 7824.
1100
Since all the numbers in that range start with "11", there is really only one option!