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What multiples of 5 are not multiples of 50?
Multiples of 50 are the only numbers that are both. All other multiples of 5 aren't.
How many even whole numbers between 1 and 99 are multiples of 5?
9 of them.
What are numbers between 49 and 95 that are multiples of 3 5 9?
90. All numbers that are multiples of 3, 5 & 9 are multiples of their lowest common multiple lcm(3, 5, 9) = 45 → multiples of 45 between 49 and 95 is 2 x 45 = 90.
Why do no prime numbers other than 5 end in 5?
All of the numbers that end in 5 are multiples of 5 which means that they have more than two factors.
How can you draw a flow chart to find prime numbers?
The first action sequence in the flow chart is to remove all multiples of 2 from numbers greater than 2. The next sequence removes removes all multiples of 3 from all numbers greater than 3. The third sequence removes all multiples of 5 from the remaining numbers greater than 5. The fourth sequence removes all multiples of 7 from the remaining numbers greater than 7. Additional sequences are added as needed to remove multiples of as many primes as desired in ascending order.
