Question

what is the hcf of 280,350,385​

Answer 1

Answer:

hcf of 280,350,385 is 35

Step-by-step explanation:

1. Decompose all numbers into prime factors

2. Write all numbers as the product of its prime factors

3. Choose the common prime factors with the lowest exponent

4. Calculate the Greatest Common Factor or GCF

Answer 2

$280 = {2}^{3} \times 5 \times 7$

$350 = 2 \times {5}^{2} \times 7$

$385 = 5 \times 7 \times 11$

$Common prime \: factors: 5 , 7$

$hcf \: = \: 5 \times 7 = 35$