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Subjects>Math>Basic Math

Is a composite number times a composite number always composite?

Anonymous

∙ 8y ago

Updated: 4/28/2022

Yes. To be composite, the first number has at least 2 prime factors, the second number also has at least prime factors; the product of the two will have at least 4 prime factors, so it must be a composite number.

Wiki User

∙ 8y ago

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Why will a prime number times a prime number always equal a composite number?

the two prime numbers will be factors of that number, which would make that number a composite number

A composite number times a prime number is?

Composite.

Is the sum of any two prime numbers always a composite number?

The sum of any two prime numbers is not always a composite number. The sum of 2 and 11 is 13, and 13 is a prime number, not a composite number.

Is 138 prime or composite?

Composite since it ends in an even number it will always be divisible by 2

Is the square root of any composite numbers irrational?

The square root of a composite number is not always an irrational number. e.g. 4 is a composite number and its square root is 41/2 = 2, which is rational number.

Related Questions

Why will a prime number times a prime number always equal a composite number?

the two prime numbers will be factors of that number, which would make that number a composite number

A composite number times a prime number is?

Composite.

Is the sum of a prime number and a composite number always even?

No, the sum of a prime number and a composite number is not always even.

What composite number times 2 equals a prime number?

Any composite number multiplied by 2 is still a composite number.

Is an even number always composite number?

Yes.

When a composite number is divided by a composite number the quotient is a prime number?

Not always as for example 32/4 = 8

Is the sum of any two prime numbers always a composite number?

The sum of any two prime numbers is not always a composite number. The sum of 2 and 11 is 13, and 13 is a prime number, not a composite number.

Why 0 is not prime number?

Because 0 is infinate. Anything times 0 will always be 0. So, therefore, 0 is a composite number.

Is 138 prime or composite?

Composite since it ends in an even number it will always be divisible by 2

Is 384 a prime or composite?

If a number other than 2 ends in a even number, it will always be composite.

Is the sum of prime number and a composite number always even?

No.

Is 308 a prime or composite number?

it is a composite number because you can tell from the 8 that it is an even number, and even numbers can always be divided.

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