answersLogoWhite

0


Best Answer

8 ways:

5 + 79, 11 + 73, 13 + 71, 23 + 61, 31 + 53, 37 + 47, 41 + 43


Ignoring the commutative property of addition and considering "5 + 79" different to "79 + 5", a further 8 ways making 16 ways in total are possible by reversing the order of the numbers in each of the above additions.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many ways can 84 be written as the sum of two odd prime numbers?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Math & Arithmetic

How many different ways are there to add prime numbers to make a sum of 12?

It would be 5 ways


Is the prime factorization of 204x5 or2x10 or 20 is prime?

There are many ways to do prime factorisation for 20. It is not prime as it has more than 2 factors. The beginning of the prime factorisation is correct, but it is incomplete. These are two ways to complete it. 20 4x5 2x2x5 or 20 2x10 2x2x5 You have to continue using factorisation on all the numbers until all the numbers are prime. The prime numbers will always be the same if it starts with the same original number.


How many different ways can you write twenty as the sum of prime numbers if order doesn't matter and no repetitions?

Three ways (I think).


How many ways can you express 201 as a sum of 3 prime numbers?

Type your answer here... 40 time


How many different ways are there to add prime numbers to make a sum of 15?

Eight different ways.Eight different ways.Eight different ways.Eight different ways.

Related questions

How many ways can 24 be written as the sum of two different prime numbers?

Two, if the order of the primes is ignored.


How many ways can 24 be written as the sum of 2 different prime numbers?

24 = 11 + 13 = 5 + 19


How many different ways can 40 be written as a sum of 2 positive prime numbers?

Three ways. 3 + 37 11 + 29 17 + 23


In how many ways can 24 be written as the sum of two different prime numbers?

19


How many ways can 100 be written as the sum of three prime numbers?

2, 19, 79 2, 31, 67 2, 37, 61


How many ways can 100 be written as a sum of three prime numbers?

2, 19, 79 2, 31, 67 2, 61, 37


How many different ways are there to add prime numbers to make a sum of 12?

It would be 5 ways


How many ways to make 26 by adding 2 prime numbers?

23,3 19,7 13,13


How many different ways can you write twenty as the sum of prime numbers if order doesn't matter and no repetitions?

Three ways (I think).


Is the prime factorization of 204x5 or2x10 or 20 is prime?

There are many ways to do prime factorisation for 20. It is not prime as it has more than 2 factors. The beginning of the prime factorisation is correct, but it is incomplete. These are two ways to complete it. 20 4x5 2x2x5 or 20 2x10 2x2x5 You have to continue using factorisation on all the numbers until all the numbers are prime. The prime numbers will always be the same if it starts with the same original number.


In how many ways can 24 be written as sum of two diffrent prime numbers?

How about: 17+7 = 24, 19+5 = 24 and 11+13 = 24 as three examples


How many ways can you express 201 as a sum of 3 prime numbers?

Type your answer here... 40 time