It is 70
The composite numbers are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86 ,87, 88
65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80
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.
452
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.
It is 70
The composite numbers are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86 ,87, 88
65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80
There are no prime numbers between 70 and 80 because all the numbers in that range have factors other than 1 and themselves. For example, 72 can be divided evenly by 2, 3, 4, 6, 8, 9, 12, 18, 24, and 36, so it is not a prime number. Similarly, all the other numbers between 70 and 80 have multiple factors, making them composite numbers.
70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85 (including 70 and 85)
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
70, 72, 74, 75, 76, 77, 78, 80
All even numbers between 50 and 80 are composite.
160
The three prime numbers between 70 and 80 are: 71, 73, 79