Composite Numbers

# What are the composite numbers between 65 and 80?

###### Wiki User

65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80

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## Related Questions

The composite numbers between 70 and 80 are 72, 74, 75, 76, 77 and 78.

The composite numbers between 50 and 80 are: 50, 51, 52, 54, 55, 56, 57, 58, 60 62, 63, 64, 65, 66, 68, 69, 70, 72 74, 75, 76, 77, 78, 80

All even numbers between 50 and 80 are composite.

They are the numbers that have more than two factors in them.

81, 82, 84, 85, 86, 87, 88. 80 and 90 are composite too

All of them except for 83 and 89 which are prime numbers

62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77 and 78.

The only composite factor of 65 is 65. The composite factors of 80 are 4, 8, 10, 16, 20, 40, 80

All of them except for 83, 89 and 97 which are prime numbers

All numbers between 80 and 100 except 83, 89, and 97 are composites.

All of them except 83, 89 and 97 which are prime numbers

60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80.

60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90 are the composite numbers in that range.

All of them except for 83, 89 and 97 which are prime numbers

All of them except for 83, 89 and 97 which are prime numbers.

The composite numbers are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86 ,87, 88

14Composite numbers between 70-90:72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88

Since they can both be evenly divided by factors other than themselves and 1, they are both composite numbers.

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.

40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64 ,65 ,66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80The prime numbers between 40 and 80 are: 41, 43, 47, 53, 59, 61, 67, 71, 73, 79 so the composite numbers are the rest and should be listed above.

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.

They are: 62 63 64 65 66 68 69 70 72 74 75 76 77 78 80 81 82 84 85 86 87 88.

62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88.