Question

find lcm and hcf of the following numbers using prime factorisation method 19/13/7​

Answer 1

LCM = 1729

HCF = 1

Step-by-step explanation:

Factors of 19=1*19

Factors of 13=1*13

Factors of 7=1*7

LCM of 19,13 and 7 =1*19*13*7=

1729

HCF of 19,13 and 7 =1

Answer 2

Answer:

first step is to divide it in it's prime factors

19 = 19

13 = 13

7 = 7

there is no common factor in these 3 numbers

so there is no HCF and LCM in these three

numbers