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I Dont know if this is for prime's or not but i can remember doing this thing.
you add up the numbers of the digit ( 4+2+9=15) Then You see if 15 is a prime then you have the answer. ================================ 429 = 3*11*13. Hence, it is not a Prime number. A comment on the first author's response: 37 is a prime number. The sum of 3 and 7 is 10. Ten is not a prime number. Hence the rule does not apply universally. The rule does not apply to 11, 13, ,17, or 19, all known prime numbers, either. I find the related link to be useful.
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What is prime factorization of 429?
As a product of its prime factors: 3*11*13 = 429
Which three prime numbers are multiplied to make 429?
As a product of its prime factors: 429 = 3*11*13
Lowest common multiple of 33 AND 39?
33 = 3 x 11 39 = 3 x 13 Note that there are 3 columns ( 3, 11, 13) and they are all prime numbers (prime factorisation) To find the LCM, multiply the highest number in each column, so, 3 x 11 x 13 = 429 So, the LCM is 429
What number is 110 percent of 390?
110 percent of 390 =429 110% of 390 = 110% * 390 = 110%/100% * 390 = 429/1 or 429
Why 7 is not a prime number?
7 is a prime number!
