11, 13, 17, 19 and 23
11, 13, 17, 19, 23
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The prime numbers between 8 and 25 are: 11 13 17 19 and 23
24 is a composite number.24 is NOT a prime number.
less than 100
There are 8 prime numbers between 1 and 20. The numbers are 2, 3, 5, 7, 11, 13, 17, and 19.
To work this out, you need to write the numbers as the product of their prime factors: 24 = 2x2x2x3 64 = 2x2x2x2x2x2 The next step is to identify any common prime factors. In this case both numbers have three 2s as prime factors. Multiply these together and you get: 2x2x2 = 8 Thus the HCF of 24 and 64 is 8.