Study guides

☆

Q: Is 5 and 15 the prime numbers of 20?

Write your answer...

Submit

Still have questions?

Related questions

5 is but 15 is not a prime number

To find the HCF, you first have to express both numbers as the product of their prime factors: 15 = 3x5 20 = 2x2x5 The next step is to identify any common prime factors. In this case both numbers have a 5 as a prime factor. Therefore the HCF of 15 and 20 is 5.

The prime numbers of 20 are 2, 2 and 5. (2*2*5 = 20)

The product of the prime numbers 3 and 5 is 15.

Prime numbers which are factors of 15: 3&5.

10 and 20 are composite numbers, not prime numbers. The prime factorization of 10 is 2 x 5. The prime factorization of 20 is 2 x 2 x 5.

The prime factors of 15 are: 3, 5

2/5 of the numbers from 1 to 20 are prime numbers

The prime numbers from 1 to 20 are 2, 3, 5, 7, 11, 13, 17, and 19. The original answer incorrectly included 1, 9, and 15.

3*5 = 15 in prime numbers

2, 3, 5, 7, 11, 13, 17, 19 ARE prime numbers! 1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20 are NOT prime numbers!

5 is prime.

People also asked