the sum of three consecutive odd natural number is 69 find the prime number out of these numbers
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sum of three consecutive odd natural number is 69
x+x+2+x+4
=x+x+2+x+4=69
=3x+6=69
=3x=69-6
=3x=63
x=63/3
x=21
three consecutive odd natural number
21,23,29
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