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Is 5 and 15 prime numbers?
5 is but 15 is not a prime number
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.
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.
Which two prime numbers are factors of 15?
Prime numbers which are factors of 15: 3&5.
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 numbers are prime of the number 15?
The prime factors of 15 are: 3, 5
What fraction represents the number of prime numbers from 1-20?
2/5 of the numbers from 1 to 20 are prime numbers
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.
Prime number x prime number 15?
3*5 = 15 in prime numbers
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!
Which of the numbers below is a prime number 5 15 25?
5 is prime.
