There are: 26
26
9
36
There are 80 such numbers.
Any multiples of 80 are divisible by 80. Three examples: 80 / 80 = 1 : 160 / 80 = 2 : 800 / 80 = 10
No; it is divisible only by its factors (1, 2, 4, 5, 8, 10, 16, 20, 40, and 80).
80
50
The only one is 90.
There are 9 numbers evenly divisible by 10 : 10, 20, 30, 40, 50, 60, 70, 80, and 90
There are 10 numbers between 10 and 80 that are divisible by 7 with no remainder: 14, 21, 28, 35, 42, 49, 56, 63, 70, and 77.
56, 64, 72, 80, 88, 96.
There are 80 such numbers.
The answer is twenty but there are many more.
There are two prime numbers between 60 and 80: 61 and 67. Both numbers are divisible only by 1 and themselves and do not have any other factors.
Numbers that are divisible by 80 are itself and any of its other multiples
To be divisible by both 4 and 5, the number has to be divisible by 20. Therefore, there are 12 numbers between 1 and 240, inclusive, which are divisible by 4 and 5: 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240.
Any multiples of 80 are divisible by 80. Three examples: 80 / 80 = 1 : 160 / 80 = 2 : 800 / 80 = 10
Eight: 45, 50, 55, 60, 65, 70, 75 and 80.
Prime numbers between 71 to 80 = 73 and 79 Therefore there are 2 prime numbers between 71 to 80.