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A number is a multiple of 80 if the last 4 digits are a multiple of 80
- The 1,000s digit is even and the last 3 digits are a multiple of 80
- The 1,000s digit is odd and the last 3 digits are 40 times an odd number
It also works if the number is a multiple of 5 and 16 at the same time because 80 = 2^4 x 5 = 16 x 5
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Is 80 divisible by all numbers?
No; it is divisible only by its factors (1, 2, 4, 5, 8, 10, 16, 20, 40, and 80).
How many natural numbers up to 200 are not divisible by either 2 or 5?
There are 80 such numbers.
How many numbers between 1 to 80 are divisible by 3?
There are: 26
How many numbers between 1 and 600 are divisible by 2 and 3?
between 1 and 600 inclusive there are:300 numbers divisible by 2200 numbers divisible by 3100 numbers divisible by both 2 and 3400 numbers divisible by 2 or 3.
What numbers are not divisible by 7?
There is an infinite number of numbers that are not divisible by seven!
What numbers are dividable by 80?
Numbers that are divisible by 80 are itself and any of its other multiples
Is 80 divisible and if so what numbers?
Yes and by any of its factors
Is 80 divisible by all numbers?
No; it is divisible only by its factors (1, 2, 4, 5, 8, 10, 16, 20, 40, and 80).
What are numbers from 1-100 that are divisible by two?
101
How many natural numbers up to 200 are not divisible by either 2 or 5?
There are 80 such numbers.
What numbers is divisible by 40?
40, 80, 120... Any multiple of 40.
What are numbers that are divisible by 4 and 5?
Numbers that are divisible by both 4 and 5 are multiples of the least common multiple of 4 and 5, which is 20. Therefore, numbers that are divisible by 4 and 5 are multiples of 20. In other words, any number that can be expressed as 20 multiplied by an integer (e.g., 20, 40, 60, 80, etc.) is divisible by both 4 and 5.
For what numbers is 80 divisible by?
1, 2, 4, 5, 8, 10, 16, 20, 40, 80
What numbers is 80 divisible by?
1, 2, 4, 5, 8, 10, 16, 20, 40, 80
What percent of the numbers are not divisible by 5 or 10?
80%. Out of every ten numbers, one is divisible by 10, and that same one plus one moreare both divisible by 5. The remaining eight are divisible by neither 5 nor 10.
What are the divisibility rules for the number 80?
If the last 4 digits are divisible by 80, the entire number is divisible by 80.But really, it is hardly worth-while to learn divisibility rules for a large amount of numbers; only for a few small numbers. Normally it is easier to just do the division.
How do you know that 55 over 80 is not in simplest form?
Both numbers are divisible by 5.
