Question

How many integers between 57 and 2021 are divisible by 4 but not divisible by 6

Answer 1

Answer:

okk

Step-by-step explanation:

it has a theory named sectoo theory

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Answer 2

Answer:

the two perfect squares are 1296 and 5184.

Step-by-step explanations

1, 4 and 9 are already perfect squares by themselves, so any subset thereof may join any set of 3, 4 or 5 other 1-digit numbers whose product is a perfect square, to form another perfect square with six digit-factors.

Since 2*3*6 = 36 is a perfect square, then 1*2*3*4*6*9 = 1296 = 36^2 is a perfect square and a product of six different 1-digit numbers.

Since 3*6*8 = 144 is a perfect square, then 1*3*4*6*8*9 = 5184 = 72^2 is a perfect square and a product of six different 1-digit numbers.

Therefore, the two perfect squares are 1296 and 5184