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41 is prime.

51 is composite. 51=3 x 17 .

71 is prime.

81 is composite. 92

91 is composite. 91 = 7 × 13

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Q: Is 41 51 71 81 91 a prime number?

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A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 71 is prime.No 71 is prime. 1 and 71 are the only factors.

Yes, 71 is a prime number.

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.

61 and 71 are prime numbers the rest are composite numbers

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71 is prime 45 = 3 x 15 51 = 3 x 17

11: 11 31: 31 41: 41 51: 3, 17 61: 61 71: 71 81: 3 91: 7, 13

24, 51 and 72 are composite numbers 71 is a prime number.

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 71 is prime.No 71 is prime. 1 and 71 are the only factors.

They are: 53, 59, 61, 67, 71 and 73

This number is prime, and prime means that there are no numbers that equal this problem. Except for:1 and itself (40)

31 41 61 71

It is: 1, 11, 21, 31, 41, 51, 61, 71, 81, and 91.

71 is a prime number.

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.

Yes, 71 is a prime number.

71 is a prime number. Its only prime factor is 71.

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