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15 is not prime, so they cannot be.
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∙ 14y ago
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What are the HCF of 15 and 20?
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.
Is 5 and 15 prime numbers?
5 is but 15 is not a prime number
What prime numbers add up to 20?
The prime numbers of 20 are 2, 2 and 5. (2*2*5 = 20)
What two prime numbers equal to 15?
The product of the prime numbers 3 and 5 is 15.
Prime numbers from 1 to 20?
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.
What are the prime numbers 1 to 20?
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!
How do you categorize the prime numbers of 10 and 20?
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.
What fraction represents the number of prime numbers from 1-20?
2/5 of the numbers from 1 to 20 are prime numbers
What numbers are prime of the number 15?
The prime factors of 15 are: 3, 5
Prime number x prime number 15?
3*5 = 15 in prime numbers
What are the factors and prime factors of 15 and 20?
The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 20 are: 1, 2, 4, 5, 10, and 20.The prime factors of 20 are: 2 and 5.
Which of the numbers below is a prime number 5 15 25?
5 is prime.
