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composite numbers less than 20 which have more than 5 factors = 12 & 18 composite numbers less than 20: 4, 6, 8, 9, 10, 12, 14, 16, 18
Factors of:
4 = 1, 2, 4
6 = 1, 2, 3, 6
8 = 1, 2, 4, 8
9 = 1, 3, 9
10 = 1, 2, 5, 10
12 = 1, 2, 3, 4, 6, 12
14 = 1, 2, 7, 14
16 = 1, 2, 4, 16
18 = 1, 2, 3, 6, 9, 18
thus 12 & 18 have more than 5 factors.
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What numbers have lots of factors?
Composite numbers have more than 2 factors.
Which numbers are not composite numbers?
Composite numbers have more than two factors. So, the numbers which have two or less than two factors are not composite numbers. Numbers which have exactly two factors are prime numbers. 1 is an exceptional case because it is neither prime nor composite since it has only one factor which is 1.
What are the composite numbers with more than 2 factors?
All composite numbers have more than two factors.
Numbers that have three or more factors?
Composite numbers
What is prime and composite numbers mean?
Prime numbers are numbers with only two factors. Composite numbers are numbers with more than two factors.
