29, 61, 23, 97, 41, and 67 are prime. 81, 51, 93, 77, and 39 are composite.
51 is composite.
51 is composite.
61 is a prime number. 49 is not a prime number as it is divisible by 7. 51 is not a prime number as it is divisible by 3.
61 is a prime number
51 is a composite number but 61 is a prime number
ANSWER: 61 is a prime number but 51 is a composite number.61 is a prime number because the factors of 61 are 1 and itself (61).51 is a composite number because the factors of 51 other 1 and itself (51) are 3 and 17.
61 and 71 are prime numbers the rest are composite numbers
33 = 3 x 11 51 = 3 x 17 41 prime 61 prime
3 x 17 = 51. It has factors other than 1 and itself. It is composite. 61 is prime. Its only factors are 1 and 61. 71 is prime. Its only factors are 1 and 71. 7 x 13 = 91. It is a composite number.
29, 61, 23, 97, 41, and 67 are prime. 81, 51, 93, 77, and 39 are composite.
61 is prime.
51 is composite.
61 is prime.
51 is composite.
61 is prime
61 is a prime number. 49 is not a prime number as it is divisible by 7. 51 is not a prime number as it is divisible by 3.