Table of Contents
Is 42 a prime factor?
Prime factors of 42 are 1, 2, 3, and 7.
Is 43 prime or composite yes or no?
43 is prime, since its only divisors are 1 and 43 . 44 is composite, since it has 1,2,4,11,22 and 44 as divisors.
Is 42 and 84 prime or composite?
For a number to be classified as a prime number, it should have exactly two factors. Since 84 has more than two factors, i.e. 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, it is not a prime number.
Is 41 prime or composite yes or no?
Yes, 41 is a prime number. The number 41 is divisible only by 1 and the number itself. Since 41 has exactly two factors, i.e. 1 and 41, it is a prime number.
Is 42 a composite number?
Yes, since 42 has more than two factors i.e. 1, 2, 3, 6, 7, 14, 21, 42. In other words, 42 is a composite number because 42 has more than 2 factors.
What is a factor of 42?
The factors of 42 are 1, 2, 3, 6, 7, 14, 21 and 42.
What is called composite number?
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Equivalently, it is a positive integer that has at least one divisor other than 1 and itself. For example, the integer 14 is a composite number because it is the product of the two smaller integers 2 × 7.
What are all the prime and composite numbers?
So when there are more factors than 1 or the number itself, the number is Composite. A question for you: is 15 Prime or Composite?…Examples From 1 to 14.
| Number | Can be Exactly Divided By | Prime, or Composite? |
|---|---|---|
| 11 | 1, 11 | Prime |
| 12 | 1, 2, 3, 4, 6, 12 | Composite |
| 13 | 1, 13 | Prime |
| 14 | 1, 2, 7, 14 | Composite |
What numbers is prime or composite?
Summary: A prime number has only two factors: 1 and itself. A composite number has more than two factors. The number 1 is neither prime nor composite. The prime numbers between 2 and 31 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and 31 since each of these numbers has only two factors, itself and 1.
Is 91 prime no?
Therefore, 91 is not prime.
Is 81 a prime no?
No, 81 is not a prime number. The number 81 is divisible by 1, 3, 9, 27, 81. Since 81 has more than two factors, i.e. 1, 3, 9, 27, 81, it is not a prime number.