Question

Anser the question 16 without process and 17 with process... please....

Answer 1

16.

Note: A number is divisible by 6. if it is divisible by 2 and 3.


(1) 17852.

= > 17852 is divisible by 2. Since the units place is 2.

= > 17852 is not divisible by 3.Since the sum of digits of 1 + 7 + 8 + 5 + 2 = 23 which is not divisible by 3.

Therefore 17852 is divisible by 2, not 3.

Hence, 17852 is not divisible by 6.



(2) 639210

= > 639210 is divisible by 2. Since the units place is 0.

= > 639210 is divisible by 3. Since the sum of digits 6 + 3 + 9 + 2 + 1 + 0 = 21 which is divisible by 3. 

Therefore 639210 is divisible by 2 and 3.

Hence, 639210 is divisible by 6.





17.

Prime factorization of 72 = 2 * 2 * 2 * 3 * 3

Prime factorization of 120 = 2 * 2 * 2 * 3 * 5

Prime factorization of 192 =  2 * 2 * 2 * 2 * 2 * 2 * 3

HCF(72,120,192) = 2 * 2 * 2 * 3

                            = 24.




Hope this helps!