Quick Answer: How Many Factors Does 30 Have?

What are all of the factors of 30?

The factors of number 30 are 1, 2, 3, 5, 6, 10, 15 and 30..

What is the lowest common multiple of 20 and 30?

60Least common multiple (LCM) of 20 and 30 is 60.

What is the greatest factor of 30?

The prime factors of 30 are 2 x 3 x 5. The prime factors they have in common are 3 x 5. 3 x 5 = 15. The greatest common factor is 15.

Is two a perfect square?

The perfect squares are the squares of the whole numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 … Here are the square roots of all the perfect squares from 1 to 100. 1. Estimate – first, get as close as you can by finding two perfect square roots your number is between.

Is 9 a perfect square?

In mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it can be written as 3 × 3.

Why is 30 not a square number?

So now we know the digital root of 30 is 3. Is 3 in the list of digital roots that are always a square root (1, 4, 7 or 9)? Answer: NO, 3 is not in the list of digital roots that are always perfect squares. We can conclude that 30 IS NOT a perfect square and we don’t need to factor!

How many positive factors does 30 have?

8 Positive Factors-1, -2, -3, -5, -6, -10, -15, and -30. How many Factors of 30? When we counted the Factors of 30 that we listed above, we found that 30 has 8 Positive Factors and 8 Negative Factors. Thus, the total number of Factors of 30 is 16.

Is it possible to list all the multiples of 30?

Is it possible to list all of the multiples of the number 30? Explain. No, it is not possible because there are an infinite number of multiples of any number.

How many factors does 42 have?

Therefore, the factors of 42 in pairs are (1, 42), (2, 21), (3, 14) and (6, 7).

What is the perfect square of 30?

900Perfect Square:Positive IntegerInteger Squared=Perfect Squares List2929 ^2 =8413030 ^2 =9003131 ^2 =9613232 ^2 =102492 more rows

Is 30 a factor or a multiple of 10?

If a is divisible by b, then b is a factor of a, and a is a multiple of b. Example : 30 = 3 × 10, so 3 and 10 are factors of 30 and 30 is a multiple of 3 and 10. Every factor of a number is an exact divisor of that number.

What is the LCM of 12 and 30?

For example, for LCM (12,30) we find: Prime factorization of 12 = 2 × 2 × 3. Prime factorization of 30 = 2 × 3 × 5. Using all prime numbers found as often as each occurs most often we take 2 × 2 × 3 × 5 = 60. Therefore LCM (12,30) = 60.