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Which of these numbers are prime 13 16 19 21?
13 and 19.
Which are prime numbers out of 16 27 13 19 and 21?
They are 13 and 19
Is 247 a prime number or a composite number?
247 is not prime. 247 = 13 * 19
What is a prime number above 13?
prime numbers above 13 = 17, 19, 23, 29, 31,...
How many prime number occur from 11 to 19 and what are they?
They are: 11, 13, 17 and 19
Which of these numbers are prime 13 16 19 21?
13 and 19.
Which are prime numbers out of 16 27 13 19 and 21?
They are 13 and 19
Which is a prime number 16 21 19 18?
19 is prime.
Identify each number as a prime or composite number 13 33 45 19?
13 and 19 are prime. 33 and 45 are composite.
How many integers between 13 and 19 inclusive have an even number of prime factors?
13 is prime 14=2x7, 2 factors 15=3x5, 2 factors 16=24, 4 factors 17 is prime 18=2x32, 3 factors 19 is prime So the answer is 3 (14, 15 and 16)
Is 247 a prime number or a composite number?
247 is not prime. 247 = 13 * 19
What are prime numbers 16 27 13 19 21?
13,19.
What number are prime 10 11 12 13 14 15 16 17 18 19 20?
Even number bigger than two are never prime so cross them out, leaving11,13,15,17,19Any number ending in 5 is divisible by 5 and so can not be prime,This leaves 11,13,17,19 which all could be prime and actually are.
What is a prime number above 13?
prime numbers above 13 = 17, 19, 23, 29, 31,...
Which of 19 29 and 39 is not prime?
39 is not a prime number. It can be divided by 3 and 13.
How many prime number occur from 11 to 19 and what are they?
They are: 11, 13, 17 and 19
Is 8143144792574020282236217021 a prime number or a composite number?
8143144792574020282236217021 is not prime. 8143144792574020282236217021 = 13 * 19 * 61 * 631 * 856517044004715575473
