Question

Find the HCF of 155,205,100​

Answer 1

Answer:

first take HCF of 155&205

I am using the method of Euclid's division lemma.

205=155*1+50

155=50*31+0

HCF =50

NOW LETS TAKE HCF OF 50&100

100=50*2+0

HCF = 50

Answer 2

Answer: 5

Step-by-step explanation:

The factors of 100 are: 1, 2, 4, *5*, 10, 20, 25, 50, 100

The factors of 155 are: 1, *5*, 31, 155

The factors of 205 are: 1, *5*, 41, 205

Then the greatest common factor is 5.