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There are 12 numbers less than 150 which have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121,144.

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Q: What whole number less than 150 has odd number of factors?

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The three greatest whole numbers less than 200 that each have an odd number of factors are 144, 169 and 196.

It depends: If the whole number is positive then the result is less than the whole number, eg ½ × 2 = 1 < 2 If the whole number is negative then the result is greater than the whole number, eg ½ × -2 = -1 > -2

24. Its factors are: 1, 2, 3, 4, 6, 8, 12, and 24.

A whole number with more than 2 factors is a composite number.

All positive integers less than or equal to 39 are whole numbers less than 40.

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840

36

36

19 numbers Factors for 24 are: 1, 2, 3, 4, 6, 8, 12, 24 Factors for 30 are: 1, 2, 3, 5, 6, 10, 15, 30 Factors for 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36 Factors for 40 are: 1, 2, 4, 5, 8, 10, 20, 40 Factors for 42 are: 1, 2, 3, 6, 7, 14, 21, 42 Factors for 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 Factors for 54 are: 1, 2, 3, 6, 9, 18, 27, 54 Factors for 56 are: 1, 2, 4, 7, 8, 14, 28, 56 Factors for 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 Factors for 66 are: 1, 2, 3, 6, 11, 22, 33, 66 Factors for 70 are: 1, 2, 5, 7, 10, 14, 35, 70 Factors for 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 Factors for 78 are: 1, 2, 3, 6, 13, 26, 39, 78 Factors for 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 Factors for 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 Factors for 88 are: 1, 2, 4, 8, 11, 22, 44, 88 Factors for 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 Factors for 96 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96 Factors for 100 are: 1, 2, 4, 5, 10, 20, 25, 50, 100

The three greatest whole numbers less than 200 that each have an odd number of factors are 144, 169 and 196.

the number 90 has the most factors under 100

360, 420 and 480 each have 24 factors.

There is no whole number less than zero.

The numbers 60, 72, 84, 90, and 96 each have 12 factors.

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less than