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Whole numbers ending in 8 are even numbers. All even numbers except for 2 are composite numbers.
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∙ 12y ago
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Why is 135 a composite number?
If 135 was a prime number its only factors would be 1 and 135, but by ending in a 5 that means 5 is a factor which means it cant be a prime number, so its factors are atleast (may be more) 1,5,27,135 which makes it composite.
Why is 169 not a prime number?
169 is not a prime number because it cant be evenly divided.
What is the prime factor of 293?
293 is a prime number, therefore the prime factorization of it would be 293, you cant do 293x1 because 1 is NOT a prime number therefore you cant do it because it wouldn't b a prime factorization that is your answer
Why cant 2 and 3 be two consecutive whole numbers be prime numbers?
2 and 3 are prime numbers.
Why cant number 5 be a prime number?
But 5 is a prime number because it has only two factors which are itself and one
Which prime number is a even number?
2 is an even but prime number because it cant be divided by its self or by any other number.
What is a prime number and how do to find them?
13 is a prime number because u cant find 13 as a product on a multiplication!
What is the Factor tree for 90?
a factor is actually like a tree with branches.just divide 90 by prime whole numbers until you get all prime numbers.first divide 90 by 290/2 = 45 [2 is a prime whole number]45/5 = 9 [5 is a prime whole number]9/3 = 3 [3 is a prime whole number]since your last number is 3 you cant divide anymore to get a smaller prime whole number.so now use the numbers you have... 90,45,9,2,3,3, and 5 to make your factor tree.start with 90 at top. make two branches with 45 and 2 on the ends. make two more branches from 45 with 9 and 2 on the ends. make two more branches from the 9 with a 3 and 3 on the ends. all of the ends of your branches now have prime whole numbers and you are finish!9045,215,3,25,3,3,2
What is the difference between odd nos and prime nos?
odd is a number you cant halve a prime number is a number that you can double itself and it is odd
How can you use a models to tell if a number is prime or composite?
you cant
Why is it possible to change a whole into a mixed number?
If you have a whole number it cant be a mixed number that's just silly.
Could an even number bigger than 2 be a prime number?
no because if it is a even number it cannot be a prime number whether its biger or smaller that two so no it cant
