Mathematics
Grade6
Easy
Question
What is the prime factorization of 20?
- 1 × 20
- 2 × 2 × 5
- 2 × 2 × 4
- 1 × 1 × 20
Hint:
Prime factorization refers to dividing a given number by the smallest possible prime number, also known as factor and finding the group of such prime factors that whn multiplied together, give the original number as the solution.
The correct answer is: 2 × 2 × 5
Solution-
We know that the smallest prime number that can be used to divide 20 is 2 & 5.
∴ 20 can be factorized as-
20 = 2 * 2 * 5
Final Answer- 'Option c' i.e. "2 * 2 * 5".
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