Prime numbers less than 10 = 2, 3, 5, 7
The sum of prime numbers less than 10:
= 2 + 3 + 5 + 7
= 17
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The sum of the three greatest prime numbers that are less than 39 is 97.
The sum of all prime numbers less than ten is 17. Pick a number 18 or higher.
The sum of all prime numbers less than one hundred is 1104.
420
The prime numbers greater than 3 and less than 28 are 3,5,7,11,13,17,19, and 23. The sum of those numbers is 98 Dude, the question says "The prime numbers GREATER than 3... etc." so 3 is not included in the answer... thus, the answer is 95!!! NOT 98!!