Which calculation correctly uses prism factorization to write the square root of 420 in simplest form?
240 = V2 - 2 - 2 3.5 = 2/30
240 = 2 . 2 . 2 . 2 = 4/3
240 = 2 . 2 . 2 . 2 3.5 4/15
240 V2 · 2 · 2 · 3 3. 10 = 2/60

Step-by-step explanation:

We need to write prime factorisation to solve

Prime factorisation: We need to find only those prime factors that are divisible

So, Prime factors of 420 are: 2x2x3x5x7

Now replacing 420 with its prime factors

Since the options are incomplete, kindly verify the options.

So,

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2