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Is 129 a composite number?
Yes. 1 + 2 + 9 = 12 12 is divisible by 3. If the sum of the digits of a number are divisible by 3, then the whole number is divisible by 3. 129 is a composite number because it divisible by a factor other than 1 and itself.
Why is 129 divisible by 3?
You can tell a number is divisible by 3 when the sum of its digits is equal to 3 or a multiple of three. In this instance, 1 + 2 + 9 = 12/3 = 4, therefore 129 is divisible by 3.
What gives you 129?
The are a number of mathematical operations that gives us the number 129. When you add 100 to 29 you will get 129. Similarly when you subtract 11 from 140, you will get 129.
Is 129 a prime numr?
129 is a Composite Number.
How many times does 100 go into 129?
100 goes into 129 one time, with a remainder of 29. This can be calculated by dividing 129 by 100, which equals 1 with a remainder of 29. The remainder represents the amount that is left over after dividing the number 129 by 100.
