Composite Numbers

# What are the composite number of 65 and 80?

###### Wiki User

The only composite factor of 65 is 65.

The composite factors of 80 are 4, 8, 10, 16, 20, 40, 80

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###### Wiki User

66, 68, 69, 70, 72, 74, 75, 76, 77 and 78.

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## Related Questions

composite. 1 x 65 and 5 x 13composite number65 is a composite number.

Yes - since 80 is an even number, it is a composite number.

The only composite number that is a factor of 65 is 65 itself.

Composite. Because 65 can be divided by 5. So factors could be 1,65,13,5 etc.

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

A composite number is defined as a number that can be evenly dividedby any other positive whole number besides '1' and itself.The factors of 65 are: 1, 5, 13, and 65 .

compositeSixty-five is a composite number because it is divisible by five. If a number can be divide by another one, then that number is composite. Numbers like 3, 5, 7, and 11 are all prime numbers because they cannot be divided by any other number.65 is composite, as is any number of 2 or more digits ending in 5.

If a number has any other factors besides ' 1 ' and itself. then it's composite. The factors of 65 are 1, 5, 13, and 65. So it's composite. Do you see that ' 5 ' on the end of 65 ? Right there, no matter what comes before it, that ' 5 ' on the end tells you that a number is divisible by 5, so it can't be a prime.

It is even, so divisible by 2. Therefore it is composite. So the answer is yes.

Yes. In addition to '1' and 65, it has additional factors of 5 and 13.

How about 81 or any number that is not a prime number.

Composite factors of 80 : 4, 8, 10, 16, 20, 40, 80 Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

80... since -65 is a negative number, adding positive 80 will produce a value of positive 15.

65 is a composite number because its factors are not only 1 and itself but 5 and 13 also.

Answer:80 is not a prime number. It is a composite number.Definition:A prime number has exactly two factors: 1 (also known as unity) and itself. A composite number has more than two factors; in other words, it has at least one factor besides 1 and itself.Explanation:Any number ending in 0, 2, 4, 6, or 8 is evenly divisible by 2, so it has 2 as a factor. 80 is also divisible by 2, so it is a composite number.

If three of the four numbers are 79, 80, and 65, and the average is 85, then the final number will equal (85 x 4) - 79 - 80 - 65 = 116.

Answer:80 is not a prime number. It is a composite number.Definition:A prime number has exactly two factors: 1 (also known as unity) and itself. A composite number has more than two factors; in other words, it has at least one factor besides 1 and itself.Explanation:Any number ending in 0, 2, 4, 6, or 8 is evenly divisible by 2, so it has 2 as a factor. 80 is also divisible by 2, so it is a composite number.

ANSWER: 70 and 80 are not prime numbers. They are composite numbers:70 is a composite number because the factors of 70 other 1 and itself (70) are 2, 5, 7, 10, 14, and 35.80 is also a composite number because the factors of 80 other 1 and itself (80) are 2, 4, 5, 8, 10,16, 20, and 40.

No. All even numbers are composite except the number 2.

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