Find the prime factorisation of 980. – InterviewSolution

1.

Find the prime factorisation of 980.

Answer»

The prime factors are: 2 x 2 x 5 x 7 x 7

or also written as { 2, 2, 5, 7, 7 }

Written in exponential form: 22x 51x 72

√980=√2×2×2×2×5×5×7×7×7×7√980=2×2×5×7×7

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