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20: 1, 2, 4, 5, 10, 20
30: 1, 2, 3, 5, 6, 10, 15, 30
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List the whole numbers that are factors of 30?
1, 2, 3, 5, 6, 10, 15, and 30.
What are the prime factors between 20 and 30?
Prime numbers between the given numbers are 23 and 29
What numbers only have three different prime factors 15 20 30 57?
Out of that group, only 30
What is a whole number factor of a composite number?
All numbers have factors. The whole number factors of a composite number are the integers that combine in a multiplication sentence to make that number. In the sentence 5 x 6 = 30, 5 and 6 are factors of 30.
Why 23 and 29 are the prime numbers between 20 and 30?
Because the other numbers have more than two factors
What are the whole numbers that are factors of 30?
Factors are prime numbers. The primes hidden in the number 30 are: 2,3, and 5.
What do the numbers 63 20 and 30 all have in common?
They are all positive two-digit whole numbers between 15 and 65. As to factors, only 1.
You selecting a number from the numbers 1-20. What is the probability the number you select is a factor of 20?
30% chance. First, find the factors of 20: {1,2,4,5,10,20} There are 6 factors, out of 20 possible numbers. 6/20 = .3 = 30%
What is the GCF of 30 and 1.75?
Factors refer to whole numbers, not decimals.
Which numbers between 20 and 30 have the greatest number of factors?
If you include 30, both 24 and and 30 have 8 factors, the most in that range.
What two prime numbers are factors of 20 30 40 50 60?
20 and 2
Does 20 or 30 have more factors?
The positive integer factors of 20 are: 1 2 4 5 10 20 The positive integer factors of 30 are: 1 2 3 5 6 10 15 30 Therefore, out of the two numbers, 30 has more factors.
List the whole numbers that are factors of 30?
1, 2, 3, 5, 6, 10, 15, and 30.
What is the prime numbers of 20-30?
Prime numbers only have factors of 1 and themselves: 23, 29
What are the prime factors between 20 and 30?
Prime numbers between the given numbers are 23 and 29
What is a number between 20 and 30 that is composite and the sum of that numbers prime factors is the greatest of all the composits between 20 and 30?
26
How is 20 over 30 written in simplest form?
20/30 - look for common factors between the top (numerator) and bottom (denominator) numbers. Both divide by 10: 20/30 = 2/3 No more common factors, answer: 20/30 = 2/3
