2 x 3 x 3 = 18
A prime number has only 2 factors which are 1 and itself. 11 and 7 equal 18 when added.
1 and 18 2 and 9 3 and 6
-358
2 + 3 + 13
11 and 18
2 x 3 x 3 = 18
9 + 9 = 18
A prime number has only 2 factors which are 1 and itself. 11 and 7 equal 18 when added.
4 by 8, or 18 by 2 etc
1 and 18 2 and 9 3 and 6
Prime numbers are integers. They won't equal a decimal.
2, 3, and 13 are all prime numbers and their sum is equal to 18.
-358
2 + 3 + 13
16 and 2
1 x 18 2 x 9 3 x 6