1.

Find the prime factorisation of thenumbers: 320

Answer»

`2 xx 2 xx 2 xx 2 xx 2 xx 2 xx 5`
`2 xx 2 xx 2 xx 2 XXXX 2 xx 5`
`2 xx 2 xx 2 xx 2 xx 2 xx 3 xx 5`
`2 xx 2 xx 2 xx 3 xx 3 xx 2 xx 5`

Answer :A


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