71 is prime
45 = 3 x 15
51 = 3 x 17
24, 51 and 72 are composite numbers 71 is a prime number.
No, 41, 51, 71, 81, and 91 are not prime numbers. A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In this case, all the numbers listed can be divided by numbers other than 1 and themselves, making them composite numbers.
They are: 53, 59, 61, 67, 71 and 73
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.
71 is a prime number.
Yes, 71 is a prime number.
71 is a prime number. Its only prime factor is 71.
71 is a prime number.
71 is a prime number.
71 is a prime number.
71 is a Prime Number.
61 and 71 are prime numbers the rest are composite numbers