Answer:
False.
Explanation:
Prime factors are numbers that, when factored, is only multiple by itself and 1.
In this case, divide 420 by prime factors:
420/2 = 210
210/2 = 105
105/3 = 35
35 = 5 * 7
∴ 420 = 2 * 2 * 3 * 5 * 7
From the prime factorization, we can see that 420 factors into 5 prime factors, not 4, therefore, the statement is false.