Question

Factors and Multiples
43
CCE TEST PAPER-2
1. Test the divisibility of 5869473 by 11.
2. Test the divisibility of 67529124 by 8.
3. On dividing 5035 by 31, the remainder is 13. Find the quotient.
4. The HCF of two number is 15 and their product is 1650. Find their LCM.
5. Find the least 5-digit number which is exactly divisible by 20, 25, 30.
Find the largest number which divides 630 and 940 leaving remainders 6 and
respectively.
7. Find the least number which when divided by 16, 36 and 40 leaves 5 as remainde
each case.
8. Write all prime numbers between 50 and 100.
9. Write seven consecutive composite numbers less than 100 having no prime nu
between them.
10. Can two numbers have 12 as their HCF and 512 as their LCM? Justify your ans
Mark (/) against the correct answer in each of the following:
11. Which of the following are co-primes?
o 21 and 26
(0) 15 and​

Answer 1

Answer:

5869473

sum of odd places:8+9+7=24

sum if even places:=5+6+4+3=18

difference=24-18=6

6 is not divisible by 11

so 5869473 is also not divisible by 11

2.67529124

the last three digits of the no are 124

since 124 is not divisible by 8

So 67529124 is also not divisible by 8