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Why is 18 a composite number?
A number which has more than two factors is called composite number. Factors of 18 are 1, 2, 3, 6, 9 and 18. As it can be seen 18 has more than two factors so, 18 is composite.
The product of 18 negative factors will be?
If an even number of negative factors are multiplied together (such as 18 factors), the answer will be positive. If there are an odd number of negative factors, the answer will be negative.
What are the prime factors of 18?
The prime factors of 18 are 2 and 3.To find the prime factors of 18, find any two factors of 18, such as 2 and 9.2 X 9 = 18Since 2 is a prime number, find two factors of 9, but don't drop the 2.2 X 3 X 3 = 18.Since 2 and 3 are both prime numbers, 2 X 3 X 3 is the prime factorization of 18.2 and 3 are prime.
The LCM of 6 and 18?
6.To find the least common multiple, factor each number to its prime factors and then multiply all the factors from the first number with any factors in the second number that are not repeated from the first number. The prime factors of 6 are 3 and 2. 18 factored to its primes is 2 x 3 x 3. So multiply 3 and 2 from the first number (6) and ignore the factors of 18 since they repeat the factors of 6. Take the product 6, as the LCM.
What is the prime and composite number for 18?
factors of 18: 1, 2, 3, 6, 9 and 18 prime factors of 18: 2, 3 composite factors of 18: 6, 9, 18
