Question

I Answer the following questions : 1. Test the divisibility of the following numbers by 11 i) 9020814 ii) 3178965 2. Find the HCF of 1260 and 2376 by prime factorisation method. 3. Find the HCF by continuous division method 513 and 783 4. FInd the HCF of 144, 180, 192 5. Show that a) 59,97 b) 51, 23 are co-prime numbers

Answer 1

Step-by-step explanation:

First take the sum of even places number from left side

1+0+0

take the sum of odd places number

4+8+2+9

subtract the sum of both numbers

23-1=22

22 is divisible by 11 , So 902081 is divisible by 11

Answer 2

Answer:

I know I told you

Step-by-step explanation:

example- 31789652 ok.

firstly separate digits

even number l odd number

3,7,9,5 l. 1,8,6,2

then, 3795-1862= 1933.

then , 1933+37951862