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30 can be written as 23+7 or 19+11 or 17+13.
So there are not only one pair of primes, which add up to 30, but three.
In the old days, 1 was considered a prime - so back then 1+29 would also be a correct answer.
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∙ 11y ago
Anonymous
23+7
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What are two prime numbers whose sum is 30?
They are 13 and 17
How do you Express 30 as the sum of two prime numbers?
1 + 297 + 2311 + 1913 + 17
A prime number times another prime number is?
If you multiply two prime numbers, the product (result) will be a composite number, not a prime number. A prime number has exactly two factors, 1 and itself. The product of two prime numbers will have those two numbers as factors, as well. The sum of two prime numbers might be prime if one of those two numbers is 2, the only even prime number, but otherwise it will not be a prime because two odd numbers will have an even sum, which means it is divisible by 2. Examples: 2 + 3 = 5 (prime) 3 + 7 = 10 (not prime) 13 + 17 = 30 (not prime) If you multiply two prime numbers, the sum of the digits of the product might or might not be prime. Examples: 2 x 7 = 14, sum of digits is 5 (prime) 2 x 11 = 22, sum of digits is 4 (not prime) 3 x 5 = 15, sum of digits is 6 (not prime) 3 x 7 = 21, sum of digits is 3 (prime) 5 x 7 = 35, sum of digits is 8 (prime)
What is the sum of prime numbers between 30 and 40?
31 is the only prime number between 30 and 40
What is the result of the product of the first three prime numbers minus the sum of the second three prime numbers?
30 - 31 = -1
What are two prime numbers whose sum is 30?
They are 13 and 17
What two prime numbers have a sum of 30?
The prime numbers of: 23 plus 7 = 30 Also, 11 + 19 = 30 and 13 + 17 = 30
What 2 prime numbers 30?
No two prime numbers can make 30.No two prime numbers can make 30.No two prime numbers can make 30.No two prime numbers can make 30.
How do you Express 30 as the sum of two prime numbers?
1 + 297 + 2311 + 1913 + 17
Is it true that the sum of two prime numbers is always an even numbr between 30 and 60?
No. Some prime numbers are far above 60.
A prime number times another prime number is?
If you multiply two prime numbers, the product (result) will be a composite number, not a prime number. A prime number has exactly two factors, 1 and itself. The product of two prime numbers will have those two numbers as factors, as well. The sum of two prime numbers might be prime if one of those two numbers is 2, the only even prime number, but otherwise it will not be a prime because two odd numbers will have an even sum, which means it is divisible by 2. Examples: 2 + 3 = 5 (prime) 3 + 7 = 10 (not prime) 13 + 17 = 30 (not prime) If you multiply two prime numbers, the sum of the digits of the product might or might not be prime. Examples: 2 x 7 = 14, sum of digits is 5 (prime) 2 x 11 = 22, sum of digits is 4 (not prime) 3 x 5 = 15, sum of digits is 6 (not prime) 3 x 7 = 21, sum of digits is 3 (prime) 5 x 7 = 35, sum of digits is 8 (prime)
What is the sum of prime numbers between 30 and 40?
31 is the only prime number between 30 and 40
What is the sum of all the prime numbers less than 30?
The sum of all prime numbers less than 30 is 129.
Express 30 as a sum of 2 prime numbers?
13 + 17 = 30
What the sum of all prime numbers between 30 and 60?
311
What is the sum of all prime numbers between 30 and 40?
68
What is the sum of the smallest and largest prime numbers within 30?
From 30 to 40 they are 31 and 37
