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Before trying to divide this number by all the given factors.

Note 1' It's an even number so will divide by '2'

2' It will NOT divide by '5' because it does not end in '5' or '0'

3' It will not divide by '10' because it does not end in 'zero'.

4' it will not divide by '9' , because the digits do not SUM to '9' (5 + 1 + 4 = 10)

So we are left with 2,3,4,6. to attempt division.

Hence

2)514 = 257 OK!!!

3)514 = 171 remainder '1' ; Does not divide by '3'

4)514 = 128 remainder '2' ; Does not divide by '4'

6)514 = 85 remainder '4' ; does not divide by '6'.

NB One other critical Prime number to try is '7'

Hence

7)514 = 73 remainder '3' So it does not divide by '7'.

So out of the list of factors, only '2' will divide into '514'.

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lenpollock

Lvl 16
1y ago

What else can I help you with?