Mastering Large Numbers and Primes

Which of the following numbers is a prime number?

• 27

• 31

• 49

• 51

Which of the following numbers is a composite number?

• 13

• 17

• 21

• 23

Arrange the following numbers in ascending order: 4567, 765, 12345, 234

• 234, 765, 4567, 12345

• 765, 234, 4567, 12345

• 12345, 4567, 765, 234

• 4567, 234, 765, 12345

Arrange the following numbers in descending order: 8901, 2345, 678, 12345

• 12345, 8901, 2345, 678

• 678, 2345, 8901, 12345

• 8901, 12345, 2345, 678

• 2345, 678, 8901, 12345

Which number has the greatest number of digits?

• 987

• 12345

• 456

• 7890

How many digits are there in the number 1234567?

• 5

• 6

• 7

• 8

Which of the following numbers is NOT a prime number?

• 2

• 3

• 9

• 7

Which of the following numbers is a composite number?

• 19

• 23

• 29

• 35

Which number is the largest?

• 987654

• 1234567

• 876543

• 234567

Which number is the smallest?

• 1001

• 1010

• 1100

• 10000