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Q: Is 1 a prime factor of 15?

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15 is a factor of 45, but it is not a prime number.

1, 3, 5 are all prime factors of 15 3 and 5 only. 1 is a special number that has no factors but itself yet it is not counted as a prime number.

No they are not.Two numbers are relatively prime if their greatest common factor is 1.For example, 8 and 15 are relatively prime.

Numbers called relatively prime have no common factors other than 1. All even numbers have 2 as a common factor, so no even number is relatively prime with any other even number. As an example, the factors of 14 are 1, 2, 7, and 14, and the factors of 15 are 1, 3, 5, and 15. 14 and 15 are relatively prime because the only factor they have in common is 1.

Prime numbers have one distinct prime factor.

Related questions

1 11 is prime

15 is not a prime number, so it can't be a prime factor.

The prime factors of 15 are 3 and 5 because 3 and 5 are prime numbers that divide evenly into 15. 1 is a factor of 15, but it is not a prime number.

The GCF of 15 and 77 is 1. The factors of 15 are 1, 3, 5, and 15. The factors of 77 are 1, 7, 11, and 77. The common factors are 1. Therefore the greatest common factor is 1, which means the two numbers are relatively prime. The greatest common factor can also be determined by prime factors. The prime factors of 15 are 3 and 5. The prime factors of 77 are 7 and 11. There are no common prime factors, so the two numbers are relatively prime, which means their only common factor is 1.

15 and 37 are co-prime because they have no common factor greater than 1.

15 and 37 are co-prime because they have no common factor greater than 1.

1 is the greatest and only common factor of 15 and 38. The prime factorization of 15 is 3*5. The prime factorization of 38 is 2*19

Since the number 29 is prime, the greatest common factor of 15 and 29 is 1.

Out of those numbers, 3 and 5 are prime.

1 The factors of 15 are 1, 3, 5, and 15. 11 is a prime number with only the factors 1 and 11 The only factor they share is 1.

No, 60 and 75 are not relatively prime because their greatest common factor is 15 and not 1. In order for them to be relatively prime, 1 must be their greatest common factor.

The number 1 is the only common factor of co-prime numbers, which is what makes them co-prime. 9 and 10 for example or 15 and 23.

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