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Is 1155 divisible by four different prime numbers?
No, the number 1155 is divisible by four prime numbers (3, 5, 7, 11).
Is 135 divisible by 3?
Yes. It equals 45. A quick rule for numbers to see if they are divisible by 3 is to add all the numbers, for example: 207 = 2 + 0 + 7 = 9 Is 9 divisible by 3...Yes! It helps reduce the large numbers, for an easier answer. The number 8649... 8 + 6 + 4 + 9 = 27 and 27 is divisible by 3, so 8649 is also divisible by 3. BUT...137: 1 + 3 + 7 = 11 11 is not divisible by 3...so, 137 is not divisible by 3.
Is 1155 divisible by 4 prime numbers?
Yes. 1155 = 3 * 5 * 7 * 11
What number is not a prime numbers 3 5 7 9 11?
9 is not a prime number as it is divisible by 3
How many numbers from 11 to 50 are there which are exactly divisible by 7 but not by 3?
How many numbers from 11 to 50 are there which are exactly divisible by 7 but not by 3? Five Four Six Two * * * * * Good strategy! List all possible values and one of them must be correct! The correct answer is 4.
Is 1155 divisible by four different prime numbers?
No, the number 1155 is divisible by four prime numbers (3, 5, 7, 11).
Is 135 divisible by 3?
Yes. It equals 45. A quick rule for numbers to see if they are divisible by 3 is to add all the numbers, for example: 207 = 2 + 0 + 7 = 9 Is 9 divisible by 3...Yes! It helps reduce the large numbers, for an easier answer. The number 8649... 8 + 6 + 4 + 9 = 27 and 27 is divisible by 3, so 8649 is also divisible by 3. BUT...137: 1 + 3 + 7 = 11 11 is not divisible by 3...so, 137 is not divisible by 3.
Is it true that all numbers are divisible that are odd by 3?
no, what about 5, 7, 11, 13 etc
Is 1155 divisible by 4 prime numbers?
Yes. 1155 = 3 * 5 * 7 * 11
What number is not a prime numbers 3 5 7 9 11?
9 is not a prime number as it is divisible by 3
How are 3 5 7 11 and 13 alike?
They are prime numbers, divisible only by one and themselves.
How many numbers from 11 to 50 are there which are exactly divisible by 7 but not by 3?
How many numbers from 11 to 50 are there which are exactly divisible by 7 but not by 3? Five Four Six Two * * * * * Good strategy! List all possible values and one of them must be correct! The correct answer is 4.
Is a odd number always divisible by 5?
NO. Odd numbers are not always divisible by 5. Examples: 3 , 7, 9, 11, 13, 17, ... are odd numbers and they are not divisible by 5.
How many numbers between 11 and 90 are divisible by 7?
A number is divisible by 7 if it is a multiple of 7, so to figure it out, start listing multiples of 7. 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, ... On this list there are 11 numbers that are between 11 and 90. The answer is 11 numbers between 11 and 90 are divisible by 7.
How many numbers that are divisible by 11 and 7?
An infinite amount of numbers but the lowest common multiple of 11 and 7 is 77
How can you work out which 3 prime numbers when multiplied together equal 231?
2 + 3 + 1 = 6, which is divisible by 3, so 231 is divisible by 3. Divide to get 231 = 77 Hard to miss that this is divisible by 7, so we get 231 = 3*7*11
What counterexample to the statement all odd numbers are divisible be 3?
5, 7, a bunch of numbers that are odd are not divisible by 3. numbers that are divisible by three can have all their numbers added together and come out with a number that is divisible by 3.
