The smallest composite number is

  • 4
  • 2
  • 3
  • 5

The largest prime number less than 20 is

  • 16
  • 15
  • 19
  • 18

The HCF of 450 and 540 is

  • 30
  • 24
  • 20
  • 16

The numbers that have only two factors and are different from each other are called

  • odd numbers
  • prime numbers
  • composite numbers
  • even numbers

The prime factors of 40 are

  • 2 x 2 x 3 x 5 x 5
  • 2 x 3 x 5 x 5
  • 2 x 2 x 2 x 5
  • 2 x 3 x 5

The prime factors of 98 in the form of index notation are

  • 2 x 5 x 7²
  • 2 x 5²
  • 2 x 7²
  • 2 x 7³

According to index notation, the prime factors of 68 are

  • 2³ x 17
  • 2² x 5 x 17
  • 2³ x 5 x 17
  • 2² x 17

The largest composite number less than 40 is

  • 31
  • 37
  • 33
  • 39

The smallest prime number is

  • 4
  • 2
  • 3
  • 5

Considering the prime factorization, the prime factors of 680 are

  • 2 x 3 x 3 x 5 x 5
  • 2 x 2 x 2 x 5 x 17
  • 2 x 3 x 5 x 5
  • 2 x 2 x 2 x 5 x 11

Considering the prime factorization, the prime factors of 440 are

  • 2 x 5 x 7
  • 2 x 3 x 5 x 5
  • 2 x 2 x 2 x 5 x 11
  • 2 x 3 x 3 x 5 x 5

The prime factors of 240 in the form of index notation are

  • 2² x 5
  • 24 x 3 x 5
  • 2³ x 3 x 5
  • 2² x 3 x 5

The first five multiples of 8 are

  • 24, 32, 40, 48, 54
  • 2, 4, 8, 6, 10
  • 8, 16, 24, 32, 40
  • 1, 2, 3, 4, 5

The Least Common Multiple of 40 and 25 is

  • 100
  • 150
  • 200
  • 50

The square of 18 is

  • 324
  • 369
  • 144
  • 342

The composite numbers has

  • more than two factors
  • infinite factors
  • one factor
  • two factors

The Least Common Multiple of 112 and 64 is

  • 448
  • 488
  • 478
  • 468

The factors of 50 are

  • 1, 2, 5, 10, 25, 50
  • 1, 2, 4, 10, 25, 50
  • 1, 2, 5, 10, 24
  • 1, 2, 3, 4, 5, 10, 25, 50

The first four multiples of 7 are

  • 7, 9, 11, 13
  • 35, 42, 49, 56
  • 1, 2, 3, 5
  • 7, 14, 21, 28

The HCF of 160, 240, 480 and 360 is

  • 40
  • 30
  • 20
  • 10
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0