Question

1. Find the HCF of the following numbers using prime factorisation method.
(0) 40,48
ii) 144, 200
(iii) 225, 450
(iv) 84, 120,168
(v) 72, 120, 192 (vi) 180, 252, 324
2. Find the HCF of the following numbers by using long division method.
(0) 54, 86
(ii) 316, 450
(iii) 620, 3120
(iv) 110, 572, 1078 (v) 4048, 3632, 7608 (vi) 2261, 3059 and 3325
3. Show that the following pairs of numbers are co-primes.
(i) 59, 97
(ii) 81,95
(iii) 403, 650
(Hint: Two numbers are co-prime or relatively prime, if their HCF is 1.)
4. Find the greatest number that will divide 147, 255 and 291 leaving remainder 3 in each case.
5. Find the greatest number which divides the numbers 398, 436 and 542 leaving remainders 7
11 and 15 respectively.
6. Find the greatest number which divides the numbers 1215, 1607 and 1999 leaving remainders
6, 8 and 10 respectively.
7. It is given that 65610 is divisible by 27. Which two numbers nearest to 65610 are each divisible
by 27?
16683
637​

Answer 1

Answer:

sryyy

yeh bht hi bada question h

padhai mai he bohot time lagega

Answer 2

Answer:

ok i want how to solve H.C.F by using prime factorisation method only