Advertisements
Advertisements
Question
Find the square root of the following number by the prime factorisation method.
400
Advertisements
Solution
400 can be factorised as follows:
| 2 | 400 |
| 2 | 200 |
| 2 | 100 |
| 2 | 50 |
| 5 | 25 |
| 5 | 5 |
| 1 |
400 = 2 × 2 × 2 × 2 × 5 × 5
So, `sqrt400 = 2 xx 2 xx 5 = 20`
APPEARS IN
RELATED QUESTIONS
Find the square root of the following number by the prime factorisation method.
9216
Find the smallest number by which the given number must bew multiplied so that the product is a perfect square:
7688
Find the square root the following by prime factorization.
586756
Find the square root the following by prime factorization.
27225
Find the square root the following by prime factorization.
3013696
Find the smallest number by which 3645 must be divided so that it becomes a perfect square. Also, find the square root of the resulting number.
A society collected Rs 92.16. Each member collected as many paise as there were members. How many members were there and how much did each contribute?
By splitting into prime factors, find the square root of 396900.
Using prime factorisation, find the square roots of 4761
Find the smallest square number divisible by each one of the numbers 8, 9 and 10.
