Question

find the HCF of the following number by long division method 1) 288,576 2) 345,506 3) 230,280

Answer 1

1)
$576 = 288 \times 2 + 0 \\ so \: \: hcf \: is \: 288$
2)

$506 = 345 \times 1 + 161 \\ 345 = 161 \times 2 + 23$
$161 = 23 \times 7 + 0$
so HCF is 23

3)
$280 = 230 \times 1 + 50 \\ 230 = 50 \times 4 + 30 \\ 50 = 30 \times 1 + 20$
$30 = 20 \times 1 + 10 \\ 20 = 10 \times 2 + 0$
HCF is 10