| Express each of the following numbers as the sum of three odd primes? |
| (a) 21 |
| (b) 31 |
| (c) 53 |
| (d) 61 |
Answer:
Number Sum of three odd primes (a) 21 3 + 5 + 13 (b) 31 3 + 5 + 23 (c) 53 3 + 19 + 31 (d) 61 3 + 11 + 47
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