3, 17 and 31 are all prime numbers.
No.
51 is composite. 51 = 3 x 17. The other three numbers are prime numbers.
2, 3, 5, and 9 includes one composite number - 9. 3, 11, 23, and 31 are all prime numbers. 2, 5, 15, and 19 includes one composite number - 19. 7, 17, 29, and 49 includes one composite number - 49.
All numbers other than 11, 13 ,17, 19 ,23,29, 31 are composite numbers. eg 10,12,14,15, are composite numbers.
It has more than 1 and itself as factors, so it is a composite number. The factors of 93 are 1, 3, 31 and 93. You can get 93 by 1 x 93 and by 3 x 31.
93 = 3 x 31 31 47 67 are prime
39 = 3 x 13 2 17 31 are prime
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31 are prime numbers. they are not composite numbers.
51 is composite. 51 = 3 x 17. The other three numbers are prime numbers.
21 is composite as 3 times 7 is 21 31 is prime
21 is divisible by 3 and 7, so it is composite. 91 is divisible by 7 and 13, so it is composite. 51 is divisible by 3 and 17. 31 is divisible by only 1 and itself, so it is the prime number.
It is a Composite number with it being visible from 2 3 31
51 is composite number
17, 19, 23, 29 and 31 are prime. 15, 21, 25 and 27 are composite..
31
3, 31, 53, and 71 are primes; 35 is composite, having the factors 1, 5, 7, and 35.
2, 3, 5, and 9 includes one composite number - 9. 3, 11, 23, and 31 are all prime numbers. 2, 5, 15, and 19 includes one composite number - 19. 7, 17, 29, and 49 includes one composite number - 49.
31