This is basically just a fancy way of asking you "What are the prime numbers between 30 and 50?"
Prime numbers are numbers that have only two factors (numbers that divide evenly into the original number): one and themselves.
Prime Examples: 2, 3, and 5 -- factors are 1 and 2, 1 and 3, and 1 and 5
Not Prime: 4 and 6 -- factors are 1, 2, and 4, and 1, 2, 3, and 6
So, the prime numbers between 30 and 50 would be:
31, 37, 41, 43, and 47
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The number that fits this criteria is a Prime number, as prime numbers have exactly 2 factors: 1 and the number itself. The prime number between 30 and 50 is 37. This is because 37 is only divisible evenly by 1 and 37, making it a prime number with exactly 2 factors.
12, 18 and 20 each have six factors.
31, 37, 41, 43, 47Pick three.
List all the factors of each number. Which factors are prime factors between 20 and 28.
No. For example, 30 has the factors 1, 2, 3, 5, 6, 10, 15, 30; while 31 only has the factors 1 and 31 - in other words, it's a prime number. Note that there are arbitrarily large prime numbers (there is no last prime number); each of them has exactly two factors.
The number exactly half-way between them and the same distance from each one is 0.450 .It's also known as the "average" of the two original numbers.