Question

find the lagest number that divides 280 and 490 without leaving a remainder​

Answer 1

Answer is 70

You need to find the HCF(GCF) of the two numbers

280= 2*2*2*5*7

490= 2*5*7*7

Take the common factors = 2*5*7 = 70

HCF is 70

Answer 2

Answer:

280= 2*2*2*5*7

490= 2*5*7*7

common factor of 280 and 490 = 2*5*7

hcf = 70

so, 70 is the no. that divides 280 and 490 without leaving a remainder.