The first 15 prime numbers are 2, 3, 5, 7, 11 ,13, 17, 19, 23, 29, 31, 37, 41, 43, and 47.
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the sum of the first 15 prime numbers is 328 .
15 prime numbers
The prime numbers between 6 and 15 are: 7, 11, 13
3*5 = 15 in prime numbers
Not including 1 as a prime number. Prime Numbers are ones that can only divide by themselves and 1 with no remainder. therefore the first 15 are: 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47. 2+3+5+7+11+13+17+19+23+29+31+37+41+43+47 = 359