A prime number is a number greater than 1 that can only be divided by 1 and itself. Note that 1 is not a prime number.
The first 10 prime numbers are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
The sum of these prime numbers:
2+3=5
5+5=10
10+7=17
17+11=28
28+13=41
41+17=58
58+19=77
77+23=100
100+29=129
Therefore, the sum of the first 10 prime numbers is 129.