Question

write the following set by listing method 1 set of prime number from 1 to 20​

Answer 1

Answer:

According to the list of prime numbers 1 to 20, the prime numbers from 1 to 20 are

• 2, 3, 5, 7, 11, 13, 17, and 19. The sum of 2, 3, 5, 7, 11, 13, 17, and 19 are, 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 = 77.

The sum of the prime numbers from 1 to 20 is 77.

Step-by-step explanation:

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Answer 2

Answer:

in this question we know that a set is a collection of elements and prime numbers are all those numbers which are divisible by itself or 1.

Therefore, prime numbers between 1 and 20 are 2, 3, 5, 7, 11, 13, 17, 19.

Hence, the set of prime numbers between 1 and 20 is {2, 3, 5, 7, 11, 13, 17, 19}.

Step-by-step explanation:

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