We can express the given numbers as the sums of three odd prime numbers as follows:(i) 31 = 5 + 7 + 19 or 31 = 11 + 13 + 7
(ii) 35 = 5 + 7 + 23 or 35 = 17 + 13 + 5
(iii) 49 = 3 + 5 + 41 or 49 = 7 + 11 + 31
Express each of the following numbers as the sum of three odd primes:
(a) 21 (b) 31 (c) 53 (d) 61