Find the sum of the prime numbers less than 21
Answers
Answered by
3
Step-by-step explanation:
prime numbers less than 21 = 2,3,5,7,11,13,17,19
sum = 2+3+5+7+11+13+17+19= 72
Answered by
0
Answer:
the sum of first 21 no's are=
2, 3, 5, 7, 11, 13, 17, 19, these are the first 21 prime no
the sum is 80
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