R s aggarwal solutions mathematics class 6 Solutions for Chapter 2 factors and multiples

Exercises in Chapter 2 factors and multiples Grade 6

Factors and Multiples Exercise 2A

Factors and Multiples Exercise 2B

Factors and Multiples Exercise 2C

Factors and Multiples Exercise 2D

Factors and Multiples Exercise 2E

Factors and Multiples Exercise 2F

Questions in Factors and Multiples Exercise 2A

Define:

(i) factor

(ii) multiple. Give five examples of each.

Write down all the factors of

(i) 20

(ii) 36

(iii) 60

(iv) 75

Write the first five multiples of each of the following numbers:

(i) 17 (ii) 23 (iii) 65 (iv) 70

Which of the following numbers are even and which are odd?

(i) 32 (ii) 37 (iii) 50 (iv) 58

(v) 69 (vi) 144 (vii) 321 (viii) 253

What are the prime numbers? Give ten examples

Write all the prime numbers between

(i) 10 and 40 (ii) 80 and 100 (iii) 40 and 80 (iv) 30 and 40

(i) Write the smallest prime number.

(ii) List all even prime numbers

(iii) Write the smallest odd prime number

Find which of the following prime numbers are primes:

(i) 87 (ii) 89 (iii) 63 (iv) 91

Make a list of seven consecutive numbers, none of which is prime

(i) Is there any counting number having no factor at all?

(ii) Find all the numbers having exactly one factor.

(iii) Find numbers between 1 and 100 having exactly three factors.

Questions in Factors and Multiples Exercise 2B

Test the divisibility of the following numbers by 2:

(i) 2650

(ii) 69435

(iii) 59628

(iv) 789403

(v) 357986

(vi) 367314

Test the divisibility of the following numbers by 4

(i) 618

(ii) 2314

(iii) 63712

(iv) 35056

(v) 946126

(vi) 810524

Test the divisibility of the following numbers by 5:

(i) 4965

(ii) 23590

(iii) 35208

(iv) 723405

(v) 124684

(vi) 438750

Test the divisibility of the following numbers by 6:

(i) 2070

(ii) 46523

(iii) 71232

(iv) 934706

(v) 251780

(vi) 872536

Test the divisibility of the following numbers by 7:

(i) 826

(ii) 117

(iii) 2345

(iv) 6021

(v) 14126

(vi)25368

Test the divisibility of the following numbers by 8:

(i) 9364

(ii) 2138

(iii) 36792

(iv) 901674

(v) 136976

(vi) 1790184

Test the divisibility of the following numbers by 9:

(i) 2358

(ii) 3333

(iii) 98712

(iv) 257106

(v) 647514

(vi) 326999

Test the divisibility of the following numbers by 10:

(i) 5790

(ii) 63215

(iii) 55555

Test the divisibility of the following numbers by 11:

(i) 4334

(ii) 83721

(iii) 66311

(iv) 137269

(v) 901351

(vi) 8790322

Questions in Factors and Multiples Exercise 2C

Give the prime factorization of each of the following numbers:

136

Give the prime factorization of each of the following numbers:

252

Give the prime factorization of each of the following numbers:

420

Give the prime factorization of each of the following numbers:

637

Give the prime factorization of each of the following numbers:

945

Questions in Factors and Multiples Exercise 2D

Find the HCF of the numbers in each of the following, using the prime factorization method:

84, 98

Find the HCF of the numbers in each of the following, using the prime factorization method:

170, 238

Find the HCF of the numbers in each of the following, using the prime factorization method:

504,980

Find the HCF of the numbers in each of the following, using the prime factorization method:

72, 108, 180

Find the HCF of the numbers in each of the following, using the prime factorization method:

84, 120, 138

Find the HCF of the numbers in each of the following, using the prime factorization method:

106,159,371

Find the HCF of the numbers in each of the following, using the prime factorization method:

272, 425

Find the HCF of the numbers in each of the following, using the prime factorization method:

144, 252,630

Find the HCF of the numbers in each of the following, using the prime factorization method:

1197, 5320, 4389