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Q: Is the number 441 a prime number?

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32 x 72 = 441

3 x 3 x 7 x 7 = 441

It is: 3*3*7*7 = 441

289 does.

To find the prime factors of a number, you should start by dividing it by any obvious divisors. In this case, the digit sum of 441 is 9, and so we know that it can divide by 9. Do this and we get 49, which is known from times tables to be 7x7. 9 can be broken down into 3x3. Thus the number 441 can be expressed as 3x3x7x7.

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No, prime numbers refer to whole numbers, not decimals.

3 and 7.

32 x 72 = 441

441 isn't prime.

3 x 3 x 7 x 7 = 441

83 and 147

The Prime Factors of 441 are 3, 7

As even numbers, none of 138, 172 or 432 can be prime.As the sum of the digits of the number is equal to 9, 441 cannot be prime.

It is a composite number because it has more than two factors.

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