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Explain why 20 is considered to be a composite number?
Any number that has factors smaller than itself (other than 1) is a composite number.Any number that has factors smaller than itself (other than 1) is a composite number.Any number that has factors smaller than itself (other than 1) is a composite number.Any number that has factors smaller than itself (other than 1) is a composite number.
Is 647 a prime number or a composite number?
A prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 647 does not have factors other than 1 and itself, so it is a prime number.
How many factors does the number 853 have?
The number 853 is prime - it has no positive integer factors other than itself and 1.
Is 83 prime number?
83 is a prime number. It has no factors other than 1 and itself.
Is 151 prime number?
151 is a prime number. It has no factors other than 1 and itself.
