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A prime number is a whole number that only has two factors which are itself and one. The all the prime numbers under 100 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 A composite number has factors in addition to one and itself. The all the composite numbers under 100 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, 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 One is neither prime nor composite. It is known as the identity element, the unit element and unity. A prime number has exactly two factors, so 1 cannot be prime because it has only one factor - itself. A composite number has more than two factors, so it cannot be composite. Zero could have either no factors at all, or infinitely many factors all paired with zero. Because of this ambiguity, it is not considered either prime or composite.
2016-04-06 22:28:58
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answer #2
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answered by Anonymous
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