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6, 18, 30, 42, 54, 66, 78, 90

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7y ago

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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.


The number is less than 100 The sum of it is 4 Half of it is an odd number What number is that?

== == 11 22


The number is less than 100 Odd A multiple of 5 More than 60?

65


What is a odd number less than 5?

-13 is an odd number which is less than 5.


Can you Find an odd number with 12 factors that is less than 100?

No, and we doubt that you can either.


How many number less than 100 have an odd number of factors in term of a rectangular array?

There are nine.


What is the sum of the smallest odd prime number and the largest prime number less than 100?

It is: 3 plus 97 = 100


How many integers less than 100 have an odd number of factors?

There are 9 integers less than 100 that have an odd number of factors.Every factor of a number has a pair, eg 2 & 3 are a factor pair of 6; and so it would be expected that every number has an even number of factors.However, if the factor pair of a number are the same number (eg 6 & 6 are a factor pair of 36), then there will be an odd number of factors.When there is a repeated factor like this, the number is a perfect square.Thus only perfect squares have an odd number of factors.Less than 100 there are 9 perfect squares (1, 4, 9, 16, 25, 36, 49, 64 & 81) which have an odd number of factors.100 itself is a perfect square and also has an odd number of factors, but the question asked for those numbers less than 100 with an odd number of factors.


How many of the whole numbers less than 100 are 10 greater than an odd whole number?

To find the number of whole numbers less than 100 that are 10 greater than an odd whole number, we can set up an equation. Let x represent the odd whole number. Therefore, the number that is 10 greater than x is x + 10. Since x is odd, it can be represented as 2n + 1, where n is a non-negative integer. Substituting this into the equation x + 10 = 2n + 1 + 10, we get 2n + 11. To find the number of such numbers less than 100, we need to find the largest possible value of n such that 2n + 11 < 100. Solving for n, we get n < 44.5, which means the largest possible integer value for n is 44. Therefore, there are 45 odd whole numbers less than 100 that are 10 greater than an odd whole number.


Which even number less than 100 has an odd number of factors and the digits of this number make up 10?

64


What odd number less than a hundred has the most factors?

The most factors any odd number less than 100 has is 6. There are 4 numbers which have 6 factors:45, 63, 75 & 99.


How do you work out the 100th odd number?

1st odd number . . . 1 (1 less than double 1)2nd odd number . . . 3 (1 less than double 2)3rd odd number . . . 5 (1 less than double 3)4th odd number . . . 7 (1 less than double 4)5th odd number . . . 9 (1 less than double 5)Are you seeing a pattern yet ?6th odd number . . . 11 (1 less than double 6)7th odd number . . . 13 (1 less than double 7)...Qth odd number . . . . (1 less than double Q)