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All even numbers greater than 2 have even proper factors, since they all have 2 as a proper factor.

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โˆ™ 2009-01-10 12:57:10
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Q: Which numbers less than 100 have even proper factors?
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Related questions

The sum of the proper factors of 4 is less than 4 List all the numbers through 50 for which the sum of its proper factors is one less than the number itself?

The numbers for which the sum of its proper factors is 1 less than the number is the powers of 2; less than 50 these are: 2, 4, 8, 16 & 32.


Which numbers less than 100 have odd proper factors?

Square numbers, like 36 and 64.


What numbers that are less than a hundred have proper factors that are only odd numbers?

The composite odd numbers from 9 to 99.


What whole number which is odd less than a hundred has the most factors as the even number?

There are four odd numbers less that 100 that have 6 factor. This does not compare with even numbers that have 12 factors!


Can two odd numbers have a greatest common factor that is even?

No. Odd numbers can't have any even factors, much less a GCF.


What odd number less than hundred has 12 factors?

No odd number less than hundred has 12 factors other numbers which has 12 factors are 60, 72, 84, 90 and 96. But they all are even numbers. The answer will be different if you consider negative numbers, however.


How many integers less than 60 have an even number of factors?

All but the square numbers - 53 of them.


What do you think is the next number greater then 50 for which the sum of its proper factors is less than the number its self?

By some definitions prime numbers don't have proper factors. In other definitions, their only proper factor is 1. Either way, your answer is the next prime number after 50, which would be 53.


What odd number less than 100 has 12 factors?

None The even numbers 60, 72, 84, 90, and 96 each have 12 factors


What numbers that have an odd number of factors and are less than 101?

There are 10 numbers less than 101 which have an odd number of factors: 1,4,9,16,25,36,49,64,81,100.


Is 76 an abundant deficient or perfect?

Abundant, deficient and perfect numbers are determined by the sum of the proper divisors (or factors) of a number, which excludes the number itself. The factors of 76 are : 1,2,4,19,38,76 . . . after excluding the number itself the sum of the proper divisors is :- 1+2+4+19+38= 64 Deficient numbers occur when the sum of the proper divisors is less than the number itself. As 64 is less that 76 then it is deficient.


What are two consecutive numbers less than 100 that have four proper factors?

44 and 45 75 and 76 98 and 99


How can you determine whether the LCM of two numbers is the product of the numbers or is less than the product of the numbers?

If the two numbers have no prime factors in common, their LCM will be their product. If there are prime factors in common, their LCM will be less than their product.


How many even numbers are less than 10?

An infinite number of even numbers are less than 10.


What numbers would have less than two factors?

Prime numbers


Set of all even natural numbers less than 9?

set of all even natural numbers less than 9 Answer = {1,2,3,4,5,6,7,8}


How can you determine whether the LCM of two numbers is the product of the numbers or is less than the product of the numbers explain?

If the two numbers have no common factors other than 1, the LCM will be their product. If there are other common factors, the LCM will be less.


Are mixed numbers less than proper fractions?

No.


What is an even number less than 100 it has an odd numbers of factors and the sum of the two digits that make up the number is 10?

64


Which even numbers less than 10 are factors of 20?

2 and 4


What are the proper factors of the number 126?

The proper factors of a number are all the factors less than itself, so the proper factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, and 63. In some cases, the number 1 is excluded from the list of proper factors, too.


How many numbers less than 100 have odd factors?

Nine numbers.


What even number less than 100 has an odd number of factors?

Perfect squares have odd numbers of factors. The perfect squares less than 100 are: 1,4,9,16,25,36,49,64,81,100. 64 seems to fit both criteria.


What is the ratio of even numbers less than 50 to add numbers less than 50?

100


What are the proper factors of the numbers from 1 to 100?

The proper factors of a number are all its factors except itself. Sometimes, the number 1 is also excluded. So, the proper factors of 6 are either 1, 2, and 3, or if excluding the number 1, they are 2 and 3. (If your instructor distinguishes between proper factors and proper divisors, then proper factors are all the factors of a number except 1 and itself, while proper divisors are all the factors of a number except itself, but often proper factors is the only term used, so check whether 1 is included in the definition you are using.)The list of factors in the question "What are the factors of the numbers from 1 to 100" (see link below) includes both 1 and the number itself, but if you remove the number itself, and the 1 if it is excluded in the definition of proper factor that you are using, you will have the complete list of proper factors.The prime numbers, which only have themselves and 1 as factors, are in bold in the list of factors on that page. Their proper factors are either the number 1, or if 1 is excluded, they have no proper factors.Short List of Proper Factors:As an example, here are the proper factors (including 1, which is sometimes used and sometimes not) for the first 10 numbers:1: No proper factors2: 13: 14: 1, 25: 16: 1, 2, 37: 18: 1, 2, 49: 1, 310: 1, 2, 5A less unwieldy versionIn practice, it seems unlikely that anyone wants you to continue the above list to 100. (That would be 3 sides of handwritten A4 paper.) Maybe they only wanted to know which numbers appear in the list of proper factors. For example, the proper factors of numbers from 1 to 10 are 1, 2, 3, 4 and 5 (as you can see above).