65+15-30 = 50
It is: 15+15 = 30
-17
The sum of all prime numbers less than 30 is 129.
15 and 2
(6 * 30) + (15 * 42) = 180 + 630 = 810.
It is: 15+15 = 30
-17
The sum of all prime numbers less than 30 is 129.
It is 0.
15 and 2
(6 * 30) + (15 * 42) = 180 + 630 = 810.
The two numbers are 25 and 15
15 and 2
13
30 and 45
31
The number 30 is considered a deficient number. An abundant number is one where the sum of its proper divisors (excluding itself) is greater than the number itself, while a deficient number has a sum of proper divisors that is less than the number. The proper divisors of 30 are 1, 2, 3, 5, 6, and 15, which sum to 32. Since 32 is greater than 30, 30 is actually classified as an abundant number, not deficient.