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How many divisors does a composite number have?
At least one other than 1 and itself. It can have infinitely many.
Is 21 a primenumber?
No, 21 is not a prime number. A prime number is defined as a natural number greater than 1 that has no positive divisors other than 1 and itself. Since 21 can be divided evenly by 1, 3, 7, and 21, it has divisors other than 1 and itself, making it a composite number.
Why is 10 not a prime number?
10 = 2 * 5. It has divisors other than 1 and itself.
What is the rule for 1 2 4 8 12 32?
Least number with exactly n even divisors 1 -> 0 divisor 2 -> 1 divisor 4 -> 2 divisors = 22 8 -> 3 divisors = 23 12 -> 4 divisors = 22x3 32 -> 5 divisors = 24
Are these numbers composite 30 31 32 33 34 35 36 37 38 and 39?
31,37 are not composite
Which one is prime out of 21 23 22 27?
The prime numbers are numbers greater than 1 that have no divisors other than 1 and themselves. Out of the numbers 21, 23, 22, and 27, only 23 is a prime number because it is only divisible by 1 and 23 itself. The other numbers have divisors other than 1 and themselves, making them composite numbers.
Is 39a prime number or not?
No, 39 has two positive divisors other than 1 and itself; 3 and 13.
Defiant ion of prime number?
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.
What is the difference between relatively prime and not relatively prime?
Numbers called relatively prime or mutually prime have no common factors or divisors other than 1. Numbers having any common factors or divisors greater than 1 are not relatively or mutually prime.
Is 1 and 2 prime?
No, neither 1 nor 2 are prime numbers. A prime number is a positive integer greater than 1 that has no positive divisors other than 1 and itself. 1 only has one positive divisor (1) and 2 has two positive divisors (1 and 2), so they are not prime.
Is 27 a prime or composiote?
27 is a composite number because it has more than two distinct positive divisors. Specifically, it can be divided evenly by 1, 3, 9, and 27. Since it has divisors other than just 1 and itself, it does not meet the criteria for being a prime number.
What does Prime and composit?
Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves, meaning they can only be divided evenly by 1 and the number itself. Composite numbers, on the other hand, are natural numbers greater than 1 that have more than two positive divisors, indicating they can be divided evenly by numbers other than 1 and themselves. In essence, prime numbers are the building blocks of natural numbers, while composite numbers are formed by multiplying primes.
