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The sum of prime numbers between 20 and 30 is?
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prime number between 20 and 30- 23, 27, 29
Sum= 23+27+29
= 79
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Answered by
1
Answer:
52
Step-by-step explanation:
PRIME NUMBERS BETWEEN 20 AND 30 = 23 and 29
No even number is a prime number (except 2). Hence, 20, 22, 24, 26, 28 and 30 are not prime numbers.
Out of the rest (21, 23, 25, 27 and 29): 21 and 27 are divisible by 3, so they are not prime numbers. Neither is 25, as it is divisible by 5.
Only 23 and 29 are left, and both are prime numbers.
The sum of prime numbers between 20 and 30
= 23 + 29
= 52
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