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Is 23 21 19 prime or composite?
19 is a prime number. Its only factors are 1 and 19. 21 is a composite number. Its factors are 1, 3, 7, and 21. 23 is a prime number. Its only factors are 1 and 23.
What is the prime number of 16 27 13 19 21?
They are 13 and 19 which are prime numbers
What is the largest prime number less than 21?
19
What prime number comes after 19?
23 Prime numbers are odd numbers and 21=3x7
Is 21 seven a prime number?
21 is the product of two prime numbers, three and seven. A prime number is defined as a number divisible only by one or itself. So ... NO ... 21 is not a prime number.
Which is a prime number 16 21 19 18?
19 is prime.
Is 23 21 19 prime or composite?
19 is a prime number. Its only factors are 1 and 19. 21 is a composite number. Its factors are 1, 3, 7, and 21. 23 is a prime number. Its only factors are 1 and 23.
Is 1 25 16 21 27 19 a prime number?
The number 1 is neither prime nor composite. The numbers 25, 16, 21, and 27 are divisible by factors that are not one or the number itself. 19 is the only one that has only 1 and itself as factors, so it is a prime number.
What is the prime number of 16 27 13 19 21?
They are 13 and 19 which are prime numbers
What is the largest prime number less than 21?
19
Which is not a prime number 17 19 or 21?
21 isn't because 7*3=21.
Which number is prime 9 19 21 25?
3 x 3 = 9 (Not a prime ; Composite) 1 x 19 = 19 ( Prime) 3 x 7 = 21 (Note a prime: Composite) 5 x 5 = 25 (Not a prime ; Composite).
Is 10 19 21 62 composite numbers?
19 is prime number. 10, 21 and 62 are composite numbers.
What prime number comes after 19?
23 Prime numbers are odd numbers and 21=3x7
Is 21 seven a prime number?
21 is the product of two prime numbers, three and seven. A prime number is defined as a number divisible only by one or itself. So ... NO ... 21 is not a prime number.
Which one is a composite number 3 7 19 21?
3, 7, and 19 have only two factors, 1 and itself. They are prime numbers. 21 has more than 2 factors: 1, 3, 7, and 21. It is a composite number.
What one is a prime number 21 23 25?
23 is a prime number.
