THE BASICS
What is a prime number?
A number with only two factors.
What is the HCF of 2 and 4?
2
What is the LCM of 3 and 4?
12
At the gym, Hillary swims every 6 days, runs every 4 days and cycles every 3 days. If she did all three activities today, in how many days will she do all three activities again on the same day?
12
What is an odd number?
A number that cannot be divide by two.
What is the HCF of 8 and 28?
4
What is the LCM of 8 and 5?
40
A shopkeeper sells candles in packets of 12 and candle stands in packet of 8. What is the least number of candles and candle stands Nita should buy so that there will be one candle for each candle stand?
24
What is a factor of a number?
A number that divides the given number without a remainder
What is the HCF of 33 and 55?
11
What is the LCM of 6 and 9?
18
Ciara is making treat bags for her friends using 24 packets of Tayto crisps and 36 bars of Cadbury chocolate. She wants every bag to be exactly the same. What is the greatest number of treat bags she can make with no food left over?
12
What is a multiple of a given number?
A number that can be divided by the given number without a remainder
What is the HCF of 24, 30, and 42?
6
What is the LCM of 5, 8, and 10?
What is the lcm of 5, 8 & 10
A florist wants to arrange 24 boquets of flowers in different rows. In how many ways can they arrange the bouquets with same number in each row?
8
What are the first 7 prime numbers?
2, 3, 5, 7, 11, 13, 17
What is the HCF of any two prime numbers?
1
What is the LCM of 6, 15, and 18?
90
Henry, Margo, and Liam are traveling around a circular track. Henry is riding his bike, Margo is walking, and Liam is running. It takes Henry 5 minutes to make it around, Margo takes 12 minutes, and Liam takes 8 minutes. How much time will pass until they meet at the starting line?
120