Question

find the sum of all the prime numbers from 20 to 80​

Answer 1

Answer:

$Sum \: of \: all \: the \: prime \: numbers\\from \: 20 \:to \: 80 \green {= 667}$

Step-by-step explanation:

$\blue { Prime \: numbers \: from \: 20 \: to \:80\:are}$

$\orange {23,29,31,37,41,43,47,53,59,61,67,71,73,79}$

$Sum \: of \: all \: the \: prime \: numbers\\from \: 20 \:to \: 80$

$\blue {=23+29+31+37+41+43+47+53+59+61+67+71+73+79}$

$\green {= 667}$

Therefore.,

$Sum \: of \: all \: the \: prime \: numbers\\from \: 20 \:to \: 80 \green {= 667}$

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Answer 2

Answer:

Step-by-step explanation:

Sum of all the prime numbers from 20 to 80

23,29,31,37,41,43,47,53,59,61,67,71,73,79

Adding all of them we get the sum as "667"