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Well, to find out if any number is divisible by 3, you add up the number's factors. If the number you come up with is divisible by 3, then the entire number is divisible by 3.
For example:
138= 1+3+8= 12
12 is divisible by 3.
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Is 138 prime or composite?
Composite since it ends in an even number it will always be divisible by 2
What is a counter example to falsify If x is an integer divisible by 3 then x2 is an integer divisible by 3?
Suppose x = sqrt(3*a) where a is an integer that is not divisible by 3. then x2 = 3*a which is divisible by 3. but x is not even rational and so is not an integer and is certainly not divisible by 3.
Is 12345 divisible by 3?
12345 is divisible by 3 and the answer is 4115
What are the prime factors of 138?
2 x 3 x 23 = 138
Prime factorization of 138?
138 = 2 x 3 x 23
Is 138 divisible by 6?
138 is divisible by 6. Any number is divisible by 6 if it is an even number that also is divisible by 3.
Does 3 go into 138?
Yes. 138 is evenly divisible by three.
Is 138 divisble by 3?
It is, but it is NOT evenly divisible.
Why is 138 divisible by 18?
138 is not divisible by 18.
Why is 138 divisible by 9?
138 / 9 is equal to 15.33 or 15 with remainder 3.
Is 138 divisible by 3?
Yes. The result is 46.
Is 138 prime?
No. 138 is divisible by 2.
Is 138 divisible by 4?
No - 138/4 = 34.5
Is 138 divisible by 9?
No.
What even number between 132 and 156 is divisible by 3 but not by 12 or 10?
138
Is 414 equally divisible by 3?
I think the question is mistyped, and should be "Is 414 evenly divisible by 3?" i.e. does it divide by 3 without leaving a remainder. The answer is yes. A quick way to tell if a number is divisible by 3 is to add the digits and if the total is divisible by 3, then the number in question is also divisible by 3 4 + 1 + 4 = 9 and 9 is divisible by 3 414 ÷ 3 = 138
Is 276 divisible by 3 and 4?
Yes. 276 is divisible by these numbers: 1 2 3 4 6 12 23 46 69 92 138 and 276.
