Q: The number 61 is a prime or a composite number?

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61 is a prime number

13 prime 63 composite 61 prime 31 prime Well the question should have been either, Which one of these numbers is not a composite number? Or, Which one of these numbers is not a prime number?

51 composite, 61 prime.

61 is prime 28 = 4 x 7 = 2 x 14 83 is prime 29 is prime

Any number except 61 67 71 73 and 79 which are prime numbers

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61 is prime.

61 is prime

51 is a composite number but 61 is a prime number

31 and 61 are prime, the rest composite.

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 is a prime number

61 has only two factors, 1 and 61, which means that it is a prime number. There are no other integers that are factors of 61. (A composite number can be divided by numbers besides 1 and itself.)

is the number 61 composite? no. it comes to the conclusion that is not composite because it is not divisible with any other number. Thus, 61 is a prime number. it is only divisible by 1 and 61

I think it's prime. But whenever you wanted to know a number is prime or composite, use this site. It must be usefull:prime-calculator dot com

13 prime 63 composite 61 prime 31 prime Well the question should have been either, Which one of these numbers is not a composite number? Or, Which one of these numbers is not a prime number?

51 composite, 61 prime.

1891 is not prime. 1891 = 31 * 61