EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

What is the HCF of two different prime numbers ? Explain with an example.

Important Questions on Reviewing Number Concepts

EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.6>Q 5
Simeon has two lengths of rope. One piece is 72 metres long and other is 90 metres long. He wants to cut both lengths of rope into the longest pieces of equal length possible. Find the length of the piece?
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.6>Q 6
Ms. Sanchez has 40 canvases and 100 tubes of paint to give to the students in her art group. What is the largest number of students she can have if she gives each students an equal number of canvasses and an equal number of tubes of paint ?
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.6>Q 7
Indira has 300 blue beads, 750 red beads and 900 silver beads. She threads these beads to make wire bracelets. Each bracelet must have the same number and colour of beads. What is the maximum number of bracelets she can make with these beads
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.7>Q 1
Write the total number of even prime number.
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.7>Q 2
Write the total number of odd prime numbers less than 50 ?
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.7>Q 3
Write all the composite numbers greater than four , but less than 30.
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.7>Q 4
Twin primes are pairs of prime numbers that differ by two. Write all twin prime pairs up to 100.
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 1 - Reviewing Number Concepts>Exercise 1.7>Q 5
Is 149 a prime number ? Explain