Mathematics
Grade6
Easy
Question
What is G.C.F of 2 and 4?
- 1
- 2
- 3
- 4
Hint:
1. The highest/ greatest factor that is common among 2 or more numbers is known as Greatest Common Factor.
2. To find GCF of 2 or more numbers, we first factorize all the given numbers and then find common factors among the 2 numbers. Then these common factors are multiplied to find the HCF.
The correct answer is: 2
Solution-
Step-1: Factorise the given numbers i.e. 2 & 4-
Factors of 2- 2 * 1
Factors of 4- 2 * 2 * 1
Step-2: Find all common factors- 1 & 2
Step-3: Multiply all the common factors the maximum number of times they occur in both the numbers-
= 1 * 2
= 2
Hence, 2 is the HCF of 2 & 4.
Final Answer- 'Option b' i.e. 2.
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