Question

Express 19 as a sum of three odd prime numbers

Answer 1

Answer:

17+2=19

Step-by-step explanation:

which number is divisible by it self only

Answer 2

Answer:

19 as the sum of three odd prime numbers can be:

$7 + 7 + 5 = 19$

and

$11 + 5 + 3 = 19$

Explanation:

Odd numbers are numbers that are not a multiple of 2 i.e. 1, 3, 5, 7, 9,....

Prime numbers are numbers whose factors are only 1 and the number itself i.e. 2, 3, 5, 7, 11, 13,....

So,

Odd prime numbers are numbers that are not a multiple of 2 and it's only factors are 1 and the number itself i.e. 3, 5, 7, 11, 13, 17, 19, ....

Therefore,

1. All the odd prime numbers smaller than 19

= 3, 5, 7, 11, 13, 17

2. 19 as a sum of three odd prime number

$7 + 7 + 5 = 19$

and

$11 + 5 + 3 = 19$