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

If the length of one side of a perfect square is 14cm then the area of that square must be

  • 196cm²
  • 169cm²
  • 216cm²
  • 144cm²

The 6³ is equal to

  • 249
  • 241
  • 216
  • 316

The 9³ (cube of 9) is equal to

  • 525
  • 343
  • 729
  • 512

According to index notation, the prime factors of 40 are

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

In a proper order, the first four factors of 80 are

  • 1, 2, 3, 4, 5
  • 1, 2, 4, 5, 8
  • 1, 3, 5, 10, 20
  • 1, 2, 3, 5, 10

John has two beepers red and green. The green beeper beeps every 35 second and red beeper beeps every 45 seconds. After how many seconds both beepers beeps at the same time?

  • 512
  • 515
  • 315
  • 415

Considering the prime factorization, the prime factors of 450 are

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

Mary has 24 pastries and wants to share pastries with her 20 friends. The greatest number of pastries any friend can get

  • 5
  • 6
  • 4
  • 2

The Highest Common Factor (HCF) of 140, 308 and 490 is

  • 15
  • 14
  • 18
  • 11

The number 343 is the cube of

  • 9
  • 7
  • 8
  • 6
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0