Express $31$ as the sum of three primes?

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Solution

Expressing $31$ as the sum of three primes:
Prime Numbers: The numbers which have only two factors $1$ and the number itself are called Prime Numbers.
Since, $31 = 23 + 5 + 3$
or $31 = 19 + 7 + 5$
So, $31$ can be expressed as sum of $23, 5$ and $3$ or $19, 5$ and $7$

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