MA-429

Prime factorisation

Lower Sec Maths · Secondary 1 · Medium · Prime factorisation

Write 840 as a product of its prime factors, giving your answer in index notation.

$2^3\times3\times5\times7$
$2^2\times3^2\times5\times7$
$2^3\times3\times5^2\times7$
$2^4\times3\times5\times7$

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