The number of days in the months April, June, September and November (and in unusual circumstances February—see February 30). Although the number of days in a month vary, 30 …

Define 30. 30 synonyms, 30 pronunciation, 30 translation, English dictionary definition of 30. Noun 1. 30 - the cardinal number that is the product of ten and three thirty, XXX large integer - an …

The meaning of THIRTY is a number equal to three times 10. How to use thirty in a sentence.

Jan 29, 2016 · Numbers each have their own value depending on what importance people give to them, maybe it marks an anniversary, or a lucky number. Well, here's 30 facts!

30 is a positive integer that comes after 29 and before 31. It is an even number and it is also considered a composite number, meaning it can be divided evenly by numbers other than 1 or …

Nov 1, 2025 · The cardinal number thirty. (telecommunications) end of message.

30 is the first sphenic number, that is the smallest number with 3 distinct prime divisors 30 is the largest number with the property that all smaller numbers relatively prime to it are prime.

Your guide to the number 30, an even composite number composed of three distinct primes. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.

The number 30, when plugged into Euler's totient function, phi (n): phi (30)= 8, with the 8 integers smaller than and having no factors in common with 30 being: 1, 7, 11, 13, 17, 19, 23 & 29.

How to read 30 number in words in English and other languages. Learn the spelling, pronunciation, and word form of 30.