What is the definition of trianglur number? with three example
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Step-by-step explanation:
A number that can make a triangular dot pattern. Example: 1, 3, 6, 10 and 15 are triangular numbers. Number Sequences - Square, Cube and Fibonacci
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No odd perfect numbers are known; hence, all known perfect numbers are triangular. For example, the third triangular number is (3 × 2 =) 6, the seventh is (7 × 4 =) 28, the 31st is (31 × 16 =) 496, and the 127th is (127 × 64 =)
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