Is 2 a prime number?
Yes, 2 is a prime number.
Which of the following numbers is prime? 4, 5, 6
5 is a prime number.
Find the HCF of 12 and 18.
The HCF of 12 and 18 is 6.
True or False: The HCF of two prime numbers is 1.
True.
Find the LCM of 3 and 5.
The LCM of 3 and 5 is 15.
Fill in the blank: The HCF of 24 and 36 is ____.
12.
What is the relationship between HCF and LCM?
The product of the HCF and LCM of two numbers is equal to the product of the numbers.
True or False: All even numbers are prime.
False.
What is the smallest prime number?
The smallest prime number is 2.
List the first five prime numbers.
2, 3, 5, 7, 11.
Find the HCF of 20, 30, and 50.
The HCF of 20, 30, and 50 is 10.
What is the LCM of 6 and 8?
The LCM of 6 and 8 is 24.
Fill in the blank: The LCM of any number and 1 is ____.
The number itself.
True or False: The only even prime number is 2.
True.
What method can be used to find the HCF?
The prime factorization method or listing the factors method.
What is the LCM of 9 and 12?
The LCM of 9 and 12 is 36.
Which of the following is not a prime number? 11, 13, 15
15 is not a prime number.
What is the HCF of 8 and 12?
The HCF of 8 and 12 is 4.
Fill in the blank: The prime factorization of 30 is ____.
2 × 3 × 5.
How can you determine if a number is prime?
Check if it has exactly two distinct positive divisors: 1 and itself.
What is the highest common factor of 14 and 21?
The HCF of 14 and 21 is 7.
What is the LCM of 4 and 10?
The LCM of 4 and 10 is 20.
True or False: The LCM of two numbers can be smaller than both numbers.
False.
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The Arid Tropics Introduction21
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Math I23
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Math II26
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Science(Cells)27
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Scinence(Food)27
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Science(PERIODIC TABLE Atoms & Molecules)21
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History Chapter 116
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Erosional and Depositional Landforms10
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CHpt 4 - Migration to Singapore20
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The Humid Tropics10
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Precipitation and Wind19
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The tropical Rainforest20
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The Tropical Mangrove Forest18
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Chpt 2 History22
