Practice factors and multiples MCQs, grade 6 online math test 8, prime and composite numbers multiple choice questions and answers. Prime and composite numbers revision test has math worksheets, helping answer key with choices as 15, 16, 19 and 18 of multiple choice questions (MCQ) with prime and composite numbers quiz as the largest prime number less than 20 is for competitive exam prep, viva interview questions. Free math study guide to practice prime and composite numbers quiz to attempt multiple choice questions based test.

MCQ. The largest prime number less than 20 is

1. 16
2. 15
3. 19
4. 18

C

MCQ. The HCF of 450 and 540 is

1. 30
2. 24
3. 20
4. 16

A

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

1. odd numbers
2. prime numbers
3. composite numbers
4. even numbers

B

MCQ. The prime factors of 40 are

1. 2 x 2 x 3 x 5 x 5
2. 2 x 3 x 5 x 5
3. 2 x 2 x 2 x 5
4. 2 x 3 x 5

C

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

1. 2 x 5 x 7²
2. 2 x 5²
3. 2 x 7²
4. 2 x 7³

C