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45 is not prime. 45 = 3 * 3 * 5

The number 45 is known to be a Prime number. This learnt in 8th grade math.

It is a composite number.

45 factors are

1,3,5,9,15,45

There are more than 2 factors.

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Q: Is 45 a prime number or a composite number?

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composite

It is a composite number.

45 is composite.

Composite45 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 have a different name.45 is composite. It is divisible by 3, 5, and 9, which makes it composite, as well as by 1 and 45, which if alone would make it prime.

13 and 19 are prime. 33 and 45 are composite.

45 is a composite number. Its factors are 1, 3, 5, 9, 15, and 45, which makes 45 composite.

45, 33 and 27 are composite numbers. 11 is a prime number.

45 is a composite number, not a prime. No number greater than 5 that ends in a 5 or 0 is a prime.

45 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

1, 3, 5, 9, 15, 45 Composite

No, 45 is not a prime number. It is a composite number. A prime number can only be divided by 1 and itself. 45 can also be divided by 3, 5, 9, and 15.

45 = 3 * 3 * 5

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