Answer
$2^{2} \times3 \times 5 \times 7$
Work Step by Step
420
$420\div2$ = 210
$210\div2$ = 105
$105\div3$ = 35
$35\div5$ = 7 (Which is prime number)
Now we write the prime factorization of 420 = $2\times2\times3\times5\times7$ = $2^{2} \times3 \times 5 \times 7$
